Document:

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                                                                   EXHIBIT 10.31

[LOGO] ALIGN                                                [LOGO] Illegible (R)

June 17, 2002

Peter Riepenhausen
Chairman, Europe

Dear Peter:

I am very pleased that you have agreed to assume the new assignment for Align
Technology that we recently discussed. This letter is to outline the key
responsibilities and duties of your new role as an Advisor to the Company and
confirm the terms and conditions of our agreement with respect to this role.

As an Advisor to the Company, you will assist us in European market strategy
development and cultivating and retaining key customers in Europe. Your role as
an Advisor will commence on September 1, 2002. In the interim, you will continue
in your role as Chairman, Europe.

In the coming weeks, I will rely upon you to develop and implement strategies
for keeping Country Managers and other key personnel fully engaged and focused
on mission critical activities and business objectives and assure the complete
transfer of all banking accounts, country entity board responsibilities, and
business and personnel files to the appropriate individuals in Santa Clara or
Europe.

As an Advisor to the Company, you will be subject to the Company's standard
consulting agreement. The consulting agreement is attached.

In your advisory role, you will be required to be available, upon reasonable
notice, both via telephone and in person, one to three days per month for a
period of one year, commencing on September 1, 2002 and ending August 31, 2003.
Your remuneration will be US$5,000.00 per month. In the event we engage your
services after August 31, 2003, you will be remunerated on a per diem basis, at
a mutually agreed rate.

As long as you remain an employee or consultant of the Company, we will allow
your May 2000, September 2000, November 2000, and September 2001 option grants
to continue vesting until May 2003, September 2003, November 2003, and September
2004, respectively, at which times they will become fully vested. Your September
2001 option grant will become a Non-Qualified Option (NSO) when your employment
status changes.

In addition, subject to the approval of the Board of Directors at the June 27,
2002 Board Meeting, Align Technology will grant you a stock issuance of 50,000
shares of Align

<PAGE>

Technology common stock which shall be subject to the right of repurchase by the
Company until vested. The stock shall vest as to 50% (25,000) of the shares
after one year and 12.5% (6,250) of the shares at the end of each quarter
thereafter, for full vesting after two years. The purchase price of the stock
will be determined when the stock issuance is approved by the Board of
Directors.

The above commitments are contingent upon the execution of the Consulting
Agreement and your agreement to certain conditions and the release of specific
claims or causes of action against the Company. A Release of Claims agreement is
also attached for your review.

Align has been well served by your vision, strategic insights and contributions
to global growth. I know the Company will continue to benefit from your input
and advice while you serve as an advisor and I appreciate your willingness to
assume this assignment.

Sincerely,

Thomas M. Prescott
President and Chief Executive Officer

Attachments: Consulting Agreement
             Release of Claims Agreement

                                                                               2

<PAGE>

                                  Attachment A

                       CONSULTANT PROPRIETARY INFORMATION
                             NONDISCLOSURE AGREEMENT

June 17, 2002

Align Technology, Inc.
881 Martin Avenue
Santa Clara, CA 95050

Ladies and Gentlemen:

     The following contains all of the terms of my Consulting Agreement (the
"Agreement") with Align Technology, Inc., a Delaware corporation (the "Company,"
which term includes the Company's subsidiaries), and supersedes all other
understandings, oral or written, between us:

     1. The amount of time I will spend as a consultant to the Company, the
nature of the services provided (the "Services") and my compensation are set
forth on Exhibit A hereto.

     2. I recognize that it is the express intention of the parties to this
Agreement that I work as an independent contractor, and not an employee, agent,
joint venturer, or partner of the Company. Nothing in this Agreement shall be
interpreted or construed as creating or establishing an employment relationship
between the Company and myself.

     3. I recognize that I will have no authority to act on or enter into any
contract or understanding, incur any liability or make any representation on
behalf of the Company without first obtaining specific written instructions from
an authorized officer of the Company.

     4. I recognize that I am solely responsible for all taxes, withholdings,
and other similar statutory obligations, including, but not limited to, workers'
compensation insurance. I agree to defend, indemnify and hold the Company
harmless from any and all claims made by an entity on account of an alleged
failure by me to satisfy any such tax or withholding obligation.

     5. I will supply any tools and equipment necessary to perform the Services.

     6. Should I, in my sole discretion, deem it necessary to employ assistants
to aid me in the performance of the Services, I agree that the Company will not
direct, supervise, or control in any way such assistants in their performance of
Services. I further agree that such assistants are employed solely by me, and
that I alone am responsible for providing workers' compensation insurance for my
employees, for paying the salaries and wages of my employees, and for ensuring
that all required tax withholdings are made. I further represent and warrant
that I maintain workers' compensation insurance coverage for my employees and
acknowledge that I alone have responsibility for such coverage.

<PAGE>

     7. I recognize that the Company is engaged in a continuous program of
research, development and production respecting its business. The Company
possesses or has rights to information that has been created, discovered,
developed or otherwise become known to the Company (including information
developed by, discovered by or created by me which arises out of my consulting
relationship with the Company) which has commercial value in its business
("Proprietary Information"). For example, Proprietary Information includes, but
is not limited to, software programs, other computer programs and copyrightable
material, technical drawings, product ideas, trade secrets, concepts for
resolving software development issues, data and know- how, inventions (whether
patentable or not), improvements, marketing plans and customer lists.

     8. I understand that my consulting relationship creates a relationship of
confidence and trust between me and the Company with respect to any (i)
Proprietary Information or (ii) confidential information applicable to the
business of any customer of the Company or other entity with which the Company
does business and which I learn in connection with my consulting relationship.
At all times, both during my consulting relationship with the Company and after
its termination, I will keep in confidence and trust all such information, and I
will not use or disclose any such information without the written consent of the
Company, except as may be necessary in the ordinary course of performing my
duties to the Company. This obligation shall end whenever such information
enters the public domain and is no longer confidential or proprietary through no
improper action or inaction by me.

     9. In addition, I hereby agree:

          (a) All Proprietary Information shall be the sole property of the
Company and its assigns, and the Company and its assigns shall be the sole owner
of all patents, copyrights and other rights in connection therewith. I hereby
assign to the Company any rights I may have or acquire in such Proprietary
Information. At all times, both during my services as a consultant with the
Company and after its termination, I will keep in confidence and trust all
Proprietary Information, and I will not use or disclose any Proprietary
Information or anything relating to it without the written consent of the
Company, except as may be necessary in the ordinary course of performing my
duties to the Company.

          (b) All documents or other media, records, apparatus, equipment and
other physical property whether or not pertaining to Proprietary Information,
furnished to me by the Company or produced by me or others in connection with my
consulting relationship shall be and remain the sole property of the Company. I
shall return and deliver all such property of the Company immediately as and
when requested by the Company. I shall return and deliver all such property
(including any copies thereof) upon request and, even without any request, upon
termination of my consulting.

          (c) During my consulting relationship, I will not engage in any
business activity which creates a conflict of interest in relation to the
subject matter of my consulting for Align Technology.

          (d) I will promptly disclose to the Company all improvements,
inventions, works of authorship, trade secrets, computer programs, designs,
formulas, mask works, ideas, processes, techniques, know-how and data, whether
or not patentable ("Inventions") which relate

<PAGE>

to the subject matter of my consulting and which are conceived, developed or
learned by me, either alone or jointly with others, during the term of my
consulting relationship.

          (e) During the term of my consulting, I will not solicit any employee
of the Company to leave the Company for any reason or to devote less than all of
any such employee's efforts to the affairs of the Company.

          (f) All Inventions which I conceive, develop or learn (in whole or in
part, either alone or jointly with others) in connection with performance of my
consulting for the Company or which use the Company's Proprietary Information
shall be the sole property of the Company and its assigns (and to the extent
permitted by law shall be works made for hire). The Company and its assigns
shall be the sole owner of all trade secret rights, patents, copyrights and
other rights anywhere in the world in connection therewith, and I hereby assign
to the Company any rights I may have or acquire in such Inventions.

          (g) With regard to Inventions described in (f) above, I will assist
the Company or its assigns in every proper way (but at the Company's expense) to
obtain and from time to time enforce patents, copyrights or other rights on the
Inventions in any and all countries, and to that end I will execute all
appropriate documents. This obligation shall continue beyond the termination of
my consulting relationship, but the Company shall then compensate me at a
reasonable rate for time spent. If the Company is unable for any reason
whatsoever to secure my signature to any such document (including renewals,
extensions, continuations, divisions or continuations in part), I hereby
irrevocably designate and appoint the Company and its duly authorized officers
and agents, as my agents and attorneys-in-fact to act for and in my behalf and
instead of me, but only for the purpose of executing and filing any such
documents and doing all other lawfully permitted acts to accomplish the
foregoing with the same legal force and effect as if done by me.

          (h) For purposes of clarifying paragraphs 9 and 10(f) above, I agree
that I will not include or publish any findings, observations, opinions or other
information concerning the Company or any of its products, services or business
practices in any research report or any scientific, medical or other journal,
whether or not the Company is mentioned by name or such information places the
Company in a favorable light, and whether or not such information is made
available privately or commercially, in hard copy or electronic form, without
the express prior written consent of the Company's President or CEO.

          (i) As a matter of record I attach hereto (as Exhibit B) a list of
existing inventions or improvements relevant to the subject matter of my
consulting relationship with the Company which have been made or conceived or
first reduced to practice by me alone, or jointly with others, prior to my
services as a consultant to the Company that I desire to remove from the
operation of this Agreement, and I covenant that such list is complete.

          (j) I represent that execution of this Agreement, my consulting
relationship with the Company and my performance of my proposed duties to the
Company in the development of its business will not violate any obligations I
may have to any person or entity, including the obligation to keep confidential
any proprietary information of that person or entity. I have not entered into
any agreement in conflict with this one.

<PAGE>

     10. This Agreement shall be effective as of the first day of my consulting
relationship with the Company and shall benefit the Company, its successors and
assigns.

     11. This Agreement may be terminated by either the Company or myself at any
time by giving five (5) days' written notice of termination. Such notice may be
given at any time for any reason, with or without cause. Termination of this
Agreement will not affect the obligations of either party arising out of events
or circumstances occurring prior to such termination.

     12. This Agreement shall not be assignable by either the Company or myself
without the express written consent of the other party.

     13. I agree that any dispute in the meaning, effect or validity of this
Agreement shall be resolved in accordance with the laws of the State of
California without regard to the conflict of laws provisions thereof. I further
agree that if one or more provisions of this Agreement are held to be illegal or
unenforceable under applicable California law, such illegal or unenforceable
portion(s) shall be limited or excluded from this Agreement to the minimum
extent required so that this Agreement shall otherwise remain in full force and
effect and enforceable in accordance with its terms.

     14. I agree that the covenants and obligations contained in this Agreement
relate to special, unique and extraordinary matters and that a violation of any
of such covenants or obligations may cause the Company irreparable injury for
which adequate remedy at law will not be available; and, therefore, that upon
any such breach of any such covenant or obligation, or any threat thereof, the
Company shall be entitled to the immediate remedy of a temporary restraining
order, preliminary injunction or such other form of injunctive or equitable
relief in addition to whatever remedies they might have at law. Furthermore, I
agree to indemnify the Company against, and shall reimburse the Company for, and
in respect of any and all claims, demands, losses, cost, expenses, obligations,
liabilities, damages, remedies and penalties, including interest, penalties and
reasonable attorneys' fees and expenses that the Company shall incur or suffer
and which arise from, are attributable to, by reason of or in connection with
any breach or inaccuracy of or any failure to perform or comply will any of my
agreements or covenants contained in this Agreement.

Accepted and Agreed to:                      /s/ PETER RIEPENHAUSEN
                                             -----------------------------------
                                             Consultant Signature

                                             PETER RIEPENHAUSEN
                                             Print Name
Align Technology, Inc.

                                             ALT KOENIGSTR. 17
                                             Print Address

By: /s/ Thomas M. Prescott                   61462 KOENIGSTEIN, GERMANY
    -----------------------------------      City, State, ZIP
Title: President & CEO

                                             SSN or Tax ID ###-##-####

       EXHIBIT A

<PAGE>

l.   Duties and Responsibilities:
     Among other duties, you will assist us in European market strategy
     development and cultivating and retaining key customers in Europe. Your
     role as an Advisor will commence on September 1, 2002. In the interim, you
     will continue in your role as Chairman, Europe.

     Align will rely upon you to develop and implement strategies for keeping
     Country Managers and other key personnel fully engaged and focused on
     mission critical activities and business objectives and assure the complete
     transfer of all banking accounts, country entity board responsibilities,
     and business and personnel files to the appropriate individuals in Santa
     Clara or Europe.

2.   Compensation:
     US $5,000/month from September 1, 2002 through August 31, 2003.

3.   Expense Reimbursement
     The company will reimburse for reasonable business expenses. All travel
     expenses must be pre-approved in advance.

<PAGE>

EXHIBIT B

Align Technology, Inc.
881 Martin Avenue
Santa Clara, CA 95050

Ladies and Gentlemen:

     1. The following is a list of existing inventions or improvements relevant
to the subject matter of my consulting with Align Technology, Inc. (the
"Company") that I desire to expressly clarify are not the subject of the
Consulting Agreement.

[X]  No inventions or improvements

     Additional sheets attached
----

     See below:
----

     2. I propose to bring to my consulting the following materials and
documents of a third party:

[X]  No materials or documents

     See below:
----

<PAGE>

                          GENERAL RELEASE OF ALL CLAIMS
                     (Exception - California - Attachment B)

     On behalf of myself, my heirs, executors, administrators and assigns, I
hereby make the following agreements and acknowledgements in exchange for
Benefits to be received by me as described in the Consultant Proprietary
Information Nondisclosure Agreement ("Attachment A") and the June 17, 2002
letter (the "Letter") received by me from the Company and signed by Thomas
Prescott, President & CEO, Align Technology, Inc.

1. I acknowledge that:

     a. I have received all wages earned by and owed to me by Align Technology,
Inc. ("Align"), as of the date this release is signed, except wages that will be
earned by me as Chairman, Europe, from the date this release is signed, through
September 1, 2002, and any benefits proposed under Attachment A and the Letter;
and

     b. I understand that in order to receive the benefits provided by
Attachment A and the Letter, I must sign and return this General Release to
Align, no later than forty-five (45) calendar days after I have received this
General Release.

2. I agree that I fully and forever waive, release, acquit and discharge Align
Technology, Inc. and any and all past, current and future parent, subsidiary and
affiliated companies, predecessors and successors thereto (together the
"Company"), as well as the Company's officers, directors, agents, employees,
affiliates, representatives, shareholders and assigns, from any and all claims,
actions, charges, complaints, grievances and causes of action of whatever
nature, whether now known or unknown, which exist or may in the future exist
arising from or relating to events, acts or omissions prior to the Effective
Date of this General Release; my recruitment and hiring by the Company, my
employment with the Company and the termination thereof, including but not
limited to: claims for bonuses, or for severance; claims of breach of contract,
breach of the covenant of good faith and fair dealing, wrongful termination,
violation of public policy, fraud, intentional or negligent misrepresentation,
defamation, personal injury, infliction of emotional distress, and claims under
Title VII of the 1964 Civil Rights Act, the Equal Pay Act of 1963, the Age
Discrimination in Employment Act, the Americans with Disabilities Act, the Civil
Rights Act of 1866, the Employee Retirement Income Security Act of 1974, the
Worker Adjustment Retraining and Notification Act, the Family Medical Leave Act,
the Worker Adjustment Retraining and Notification Act, the California Government
Code, the California Labor Code, and any other local, state and federal laws and
regulations relating to employment, except any claim I may have for:

     a. unemployment or any state disability insurance benefits pursuant to the
terms of applicable state law;

     b. workers' compensation insurance benefits under the terms of any worker's
compensation insurance policy or fund of the Company;

     c. to continue participation in certain of the Company's group benefit
plans pursuant to the terms and conditions of the federal law known as COBRA;

<PAGE>

     d. to any benefit entitlements vested as the date of my separation,
pursuant to written terms of any Company employee benefit plan; and

     e. to any stock and stock options pursuant to the terms of existing stock
option, stock purchase, and/or stock issuance agreement(s) and any addenda or
waivers thereto, between me and the Company, as modified by the Letter.

     f. to indemnification and hold harmless protection with respect to my
action as an officer of the Company, whether contained in a contract for my
benefit, the Certificate of Incorporation or By-Laws equivalent of the Company
or under statutory provisions that provide for such indemnification and hold
harmless protection or pursuant to Directors and Officers Insurance maintained
by the Company for such purpose (pursuant to which I will continue to be covered
to the extent that the Company continues in effect any such insurance).

3. I understand and agree that if, hereafter, I discover facts different from or
in addition to those which I now know or believe to be true, that the waivers
and releases of this General Release shall be and remain effective in all
respects notwithstanding such different or additional facts or the discovery of
such facts. The Company also agrees that if, hereafter, it discovers facts
different from or in addition to those which it now knows or believes to be
true, that the waivers and releases of this General Release shall be and remain
effective in all respects notwithstanding such different or additional facts or
the discovery of such facts. I agree that I fully and forever waive any and all
rights and benefits conferred upon me by the provisions of Section 1542 of the
Civil Code of the State of California, which states as follows (parentheticals
added):

     A general release does not extend to claims which the creditor [i.e., me]
     does not know or suspect to exist in his favor at the time of executing the
     release, which if known by him must have materially affected his settlement
     with the debtor [i.e., the Company].

4. The Company agrees that it fully and forever waives, releases, acquits and
discharges me from any and all claims, actions, charges, complaints, grievances
and causes of action of whatever nature, whether now known or unknown, which
exist or may in the future exist arising from or relating to events, acts or
omissions prior to the Effective Date of this General Release.

5. I agree that neither the fact nor any aspect of this General Release is
intended, or should be construed at any time, to be an admission of liability or
wrongdoing by either myself or by the Company.

6. I agree that I will not make any negative or disparaging statements or
comments, either as fact or as opinion, about the Company, including but not
limited to its employees, officers, directors, shareholders, vendors, products
or services, business, technologies, market position, performance and other
similar information concerning the Company.

7. I agree that if any provision, or portion of a provision, of this General
Release is, for any reason, held to be unenforceable, that such unenforceability
will not affect any other

<PAGE>

provision, or portion of a provision, and this General Release shall be
construed as if such unenforceable provision or portion had never been contained
herein.

8. I understand that, even if I did not sign this General Release, I would still
be bound by confidential/proprietary/trade secret information, non-disclosure
and inventions assignment agreement(s) signed by me in connection with my
employment with the Company, or by a predecessor or successor of Align, pursuant
to the terms of such agreement(s).

9. I understand that if I want to elect COBRA Benefits, after September 1, 2002,
I must timely complete and return to Align the Election Form-COBRA for me and my
eligible dependents. I further understand that I must promptly pay the COBRA
premiums due in order to continue health benefit plan coverages for me and my
dependents.

10. I understand that I may have forty-five (45) days after receipt of this
General Release within which I may review and consider, and should discuss with
an attorney of my own choosing, and decide whether or not to sign this General
Release. I also understand that, for the period of seven (7) days after I sign
this General Release, I may revoke it by delivering a written notification of my
revocation, no later than the seventh day, to:

     Human Resources
     Align Technology, Inc.
     881 Martin Avenue
     Santa Clara, CA 95050
     Facsimile: (408) 470-1022

The Effective Date of this General Release will be the eighth day after I have
signed it, provided that I have delivered it to Align and I have not revoked it
during the seven days after I signed it. I understand that I should return my
signed General Release to Align at the address above.

11. I understand that I may disclose such facts and information, to my spouse
and to my attorneys, accountants or tax advisors to whom and only to the extent
that disclosure is necessary to effect the purposes for which I have consulted
such attorneys, accountants or tax advisors. I agree that in connection with any
disclosure permitted hereunder, I shall cause such my spouse, attorneys,
accountants or tax advisors to whom disclosure has been made, to agree to comply
with this requirement of confidentiality and nondisclosure (this "Requirement"),
and in the event any such third party breaches this Requirement, such breach
shall be deemed to have been committed by me. I agree that, in the event of any
breach of this Requirement, I shall immediately return to Align the Benefits
received by me, no later than twenty (20) days after service of written demand
by Align. I acknowledge that, in the event of any breach of this Requirement,
the stock issuance of 50,000 shares referred to in the Letter will immediately
be rendered null and void. I further agree that if I fail to timely return such
Benefits as demanded by Align, the prevailing party in any legal action brought
by me or by Align in connection with such failure and/or any alleged breach of
the Requirement shall be entitled to recover their attorneys fees and costs from
the non-prevailing party, in addition to any other remedies available under
applicable law.

<PAGE>

12. I agree and understand that this General Release contains the entire
agreement between the Company and me with respect to any matters referred to
herein, and that it supersedes any and all previous oral or written agreements
except those referenced in 2.d., 2.e., and 8., above.

I HAVE READ THIS GENERAL RELEASE; I UNDERSTAND IT AND KNOW THAT I AM GIVING UP
IMPORTANT RIGHTS; I AM AWARE OF MY RIGHT TO CONSULT WITH AN ATTORNEY OF MY OWN
CHOOSING BEFORE SIGNING IT AND I HAVE BEEN ENCOURAGED TO CONSULT WITH SUCH AN
ATTORNEY; AND I SIGN IT VOLUNTARILY:

     (DATE & SIGN):
Signed: Aug 4, 2002                           Employee's Signature:

                                              /s/ Peter Riepenhausen
                                              ----------------------------------
Employee's Name (Printed):                    Peter Riepenhausen<PAGE>
                                                                   EXHIBIT 10.32

                     SETTLEMENT & GENERAL RELEASE AGREEMENT

          This Settlement and General Release Agreement ("Agreement") is made by
and between Stephen Bonelli ("Bonelli") and Align Technology, Inc. ("Align").
Bonelli and Align will hereinafter be referred to as the "Parties."

                                 R E C I T A L S

          WHEREAS, Bonelli was for a time employed by Align until his employment
terminated on September 30, 2002 (the "Termination Date");

          WHEREAS, Bonelli and Align (together "the Parties") wish permanently
to resolve all disputes that exist or may exist between them in the future
arising out of Bonelli's employment with Align and the termination thereof;

          NOW, THEREFORE, for and in consideration of the promises and
undertakings described below, the Parties agree as follows:

                               A G R E E M E N T S

     A.   ALIGN.

          1. Payment. Within five (5) business days after the Effective Date of
this Agreement (as defined in Section 8 below), Align shall deliver to Bonelli a
check made payable to "Stephen Bonelli" in the gross amount of TWO HUNDRED
THOUSAND DOLLARS ($200,000), less applicable deductions and withholdings, for
which a 2002 Form W-2 shall be issued to Bonelli.

          2. COBRA Continuation. If Bonelli is eligible and timely elects to
continue medical coverage for himself and his eligible dependents under COBRA,
Align will pay, on Bonelli's behalf, the premiums to continue this group health
insurance, including coverage for Bonelli's eligible dependents; provided,
however, that Align will pay such premiums only for the coverage for which
Bonelli and his eligible dependents were enrolled immediately prior to the
Termination Date. Align shall pay the premiums for such coverage until the
earlier of (a) September 30, 2003; (b) the effective date of Bonelli's coverage
by a health plan of a subsequent employer; or (c) the date Bonelli is no longer
eligible for COBRA coverage. For the balance of the period that Bonelli is
entitled to coverage under COBRA, he shall be entitled to maintain coverage for
himself and his eligible dependents at his own expense.

          3. Vesting Acceleration. Align will accelerate the vesting of
Bonelli's restricted shares so that on the Effective Date, Bonelli will be
vested in the same number of shares Bonelli would have vested in had he remained
in service through the one year anniversary of the Termination Date (209,166).

     B.   BONELLI.

          1. Final Pay. Bonelli represents and warrants that he has received and
reviewed his final paycheck and that he has been paid all salary, wages and the
like earned by him and owed to him by Align, including, but not limited to, all
accrued but unused vacation as well as any reimbursable business expenses.
Bonelli further acknowledges and agrees that he is not entitled to any
additional payments from Align except as set forth in this Agreement.

                                   Page 1 of 5

<PAGE>

          2. Consultation/Assistance. Bonelli agrees that for the three (3)
month period following the Termination Date, he will make himself available to
consult with and assist Align as Align may reasonably request from time to time.

          3. General Release. Bonelli hereby fully and forever releases, waives,
discharges and promises not to sue or otherwise institute or cause to be
instituted any legal or administrative proceedings against Align or any of its
current and former officers, directors, attorneys, shareholders, predecessor,
successor, affiliated or related companies, agents, employees and assignees
thereof (collectively, the "Company"), with respect to any and all liabilities,
claims, demands, contracts, debts, obligations and causes of action of any
nature, kind, and description, whether in law, equity or otherwise, whether or
not now known or ascertained, which currently do or may exist, including without
limitation any matter, cause or claim arising out of or related to facts or
events occurring prior to the Effective Date of this Agreement, and/or arising
from and relating to Bonelli's employment with Align or the termination
therefrom, including, but not limited to any claims for unpaid wages, severance,
benefits, penalties, breach of contract, breach of the covenant of good faith
and fair dealing, infliction of emotional distress, misrepresentation, claims
under Title VII of the Civil Rights Act, under the Age Discrimination in
Employment Act, under the California Fair Employment and Housing Act, under the
California Labor Code, under the Employment Retirement Income and Security Act
and under any other statutory or common law claims relating to employment or the
termination thereof, except any claims Bonelli may have for:

               a.   unemployment insurance benefits pursuant to the terms of
                    applicable law;

               b.   workers' compensation insurance benefits pursuant to
                    Division 4 of the California Labor Code, under the terms of
                    any workers' compensation insurance policy or fund of Align;

               c.   continued participation in certain of Align's group benefit
                    plans on a temporary basis pursuant to the federal law known
                    as COBRA.

          4. Waiver - Civil Code Section 1542. Bonelli understands and agrees
that Section B.3., above, applies to claims, known and presently unknown by
Bonelli; and that this means that if, hereafter, Bonelli discovers facts
different from or in addition to those which Bonelli now knows or believes to be
true, that the releases, waivers, discharge and promise not to sue or otherwise
institute legal action shall be and remain effective in all respects
notwithstanding such different or additional facts or the discovery of such
fact. Accordingly, Bonelli hereby agrees that he fully and forever waives any
and all rights and benefits conferred upon his by the provisions of Section 1542
of the Civil Code of the State of California which states as follows
(parentheticals added):

          A general release does not extend to claims which the creditor [i.e.,
          Bonelli] does not know or suspect to exist in his favor at the time of
          executing the release, which if known by him must have materially
          affected his settlement with the debtor [i.e., the Company].

          5. Confidentiality & Non-Disclosure. Bonelli hereby agrees that he
will not, without compulsion of legal process, disclose to any third party any
of the terms of this Agreement, including the amount referred to herein, either
by specific dollar amounts or by number of "figures" or otherwise, nor shall he
disclose that the fact of the payment of said dollar amount, except that he may
disclose such information to his spouse and he may disclose such information to
his attorneys and accountants to whom, and only to the extent, disclosure is
necessary to effect the purposes for which Bonelli has consulted such attorneys
and accountants. Bonelli agrees that in connection with any disclosure permitted
hereunder, Bonelli shall cause such third party to whom disclosure has been
made, including his spouse, to agree to comply with this covenant of
confidentiality and non-disclosure, and in the event such third party breaches
this covenant of confidentiality and non-disclosure, such breach shall be deemed
to have been committed by Bonelli.

                                   Page 2 of 5

<PAGE>

          6. COBRA Continuation. Bonelli hereby agrees that he will notify
Align's human resources department when he becomes eligible for medical coverage
with a subsequent employer or otherwise.

          7. No Other Pending Claims. Bonelli hereby represents and warrants
that he has neither filed nor served any claim, demand, suit or legal proceeding
against the Company.

          8. No Prior Assignments. Bonelli hereby represents and warrants that
he has not assigned or transferred, or purported to assign or transfer, to any
third person or entity any claim, right, liability, demand, obligation, expense,
action or causes of action being waived or released pursuant to this Agreement.

          9. Material Inducements. Bonelli hereby agrees and acknowledges that
the releases, waivers and promises contained in this Agreement, including the
promises of confidentiality and nondisclosure, are material inducements for the
consideration described in Section A., above.

          10. Agreement Inures to Align. Bonelli hereby agrees and understands
that this Agreement shall bind him, and his heirs, executors, administrators and
agents thereof and that it inures to the benefit of Align and its current and
former officers, directors, attorneys, shareholders, predecessors, successors,
affiliated or related companies, agents, employees and assignees thereof.

          11. Proprietary Information. Bonelli hereby acknowledges and agrees
that (a) he is bound by, and has continuing obligations under, the Proprietary
Information and Inventions Agreement ("PIIA") signed by him on November 10,
2000; (b) he has returned to Align all items of property paid for and/or
provided by Align for his use during employment with Align including, but not
limited to, any laptops, computer and office equipment, software programs, cell
phones, pagers, access cards and keys, credit and calling cards; and (c) he has
returned to Align all documents (electronic and paper) created and received by
him during his employment with Align, and he has not retained any such
documents, except he may keep his personal copies of (i) documents evidencing
his hire, compensation, benefits and termination (including this Agreement);
(ii) any materials distributed generally to stockholders of the Company, and
(iii) his copy of the PIIA. The PIIA is incorporated herein by this reference.

          12. Non-Disparagement. Bonelli agrees not to make any derogatory
statements about the Company and/or the Company's officers, directors,
employees, investors, stockholders, administrators, affiliates, divisions,
subsidiaries, predecessor and successor corporations an Assigns. Align agrees
not to make any derogatory statements about Bonelli.

     C.   ALIGN AND BONELLI.

          1. Restricted Shares. The Parties agree that if Bonelli executes this
Agreement and it becomes effective pursuant to Section 8 below, on the Effective
Date, Bonelli will be vested in 209,166 of the restricted shares of Align
Technology Inc. common stock held by him. At that time, Align will repurchase
the 23,491 shares of Align Technology Inc. common stock that have not vested as
of the Effective Date by issuing a check payable to Stephen Bonelli in the
amount of $25,017.92 .

          2. Attorneys Fees and Expenses. Each party to this Agreement shall
bear their own respective attorneys' fees and expenses related to the
negotiation of this Agreement, and each agrees to hold the other harmless from
the payment of all such attorneys' fees and expenses.

          3. No Admission. Nothing contained in this Agreement shall constitute,
be construed or be treated as an admission of liability or wrongdoing by
Bonelli, by Align, or by any current or former employee, officer or director of
Align.

                                   Page 3 of 5

<PAGE>

          4. Governing Law. California law shall govern the construction,
interpretation and enforcement of this Agreement.

          5. Severability. If any provision, or portion thereof, of this
Agreement shall for any reason be held to be invalid or unenforceable or to be
contrary to public policy or any law, then the remainder of the Agreement shall
not be affected thereby.

          6. Arbitration of Disputes Arising from Agreement. Any and all
disputes that arise out or relate to this Agreement or any of the subjects
hereof shall be resolved through final and binding arbitration. Binding
arbitration will be conducted in Santa Clara County in accordance with
California Code of Civil Procedure section 1282, et seq., and the rules and
regulations of the American Arbitration Association then in effect for
resolution of commercial disputes. Each of the Parties understands and agrees
that arbitration shall be instead of any civil litigation, each waives its right
to a jury trial, and each understands and agrees that the arbitrator's decision
shall be final and binding to the fullest extent permitted by law and
enforceable by any court having jurisdiction thereof. Each of the Parties will
bear their own respective attorneys' fees and will equally share the cost of
arbitration, although the arbitrator may award the prevailing party his/its
reasonable attorneys' fees and costs of arbitration except that such fees and
costs may not be recovered by Align that result from Align's defense against any
claim by Bonelli challenging the waiver, release and discharge of rights under
the Age Discrimination Employment Act.

          7. Counterpart Signatures. Bonelli and Align hereby acknowledge that
this Agreement may be executed in counterpart originals with like effect as if
executed in a single original document.

          8. Time to Consider; Revocation Period; Effective Date. Bonelli
understands that he may have up to twenty-one (21) days after receipt of this
Agreement within which he may review and consider, and should discuss with an
attorney of his own choosing, and decide whether or not to sign this Agreement.
Bonelli also understands that, for the period of seven (7) days after the date
he signs this Agreement, he may revoke the release of his claims under the Age
Discrimination in Employment Act ("ADEA"), in which case this Agreement shall
remain effective and enforceable in all other respects but the payment in
Section A.1. will be reduced by 40%. Bonelli understands that if he wishes to
revoke his release of claims under the ADEA, he must deliver written notice of
revocation, no later than the seventh day after she signs this General Release,
to:

                    Align Technology, Inc.
                    Attn. Human Resources
                    821 Martin Ave.
                    Santa Clara, CA 95050
                    Facsimile: (408) 470-1207

Bonelli further understands that the Effective Date of this General Release will
be the eighth day after both of the Parties have signed it and it has been
delivered to Align. Bonelli understands that he should deliver his signed
General Release to Align via the address, above.

          9. Results of Negotiation; Knowing and Voluntary Execution. The
Parties hereby acknowledge that this Agreement is the result of negotiation
between them, that each were represented by an attorney of their own choosing in
deciding whether or not to sign this Agreement and that each has read and
understands the foregoing Agreement and that each affixes their respective
signature to this Agreement knowingly, voluntarily and without coercion.

          10. Entire Agreement; Modification. The Parties hereby acknowledge and
agree that except for any pre-existing stock, stock option and/or purchase
agreement(s) between Bonelli and Align, and any amendments and waivers thereto,
no promises or representations were or are made which do not

                                   Page 4 of 5

<PAGE>

appear written in this Agreement. The Parties agree that this Agreement contains
the entire agreement by Bonelli and Align, and that neither is relying on any
representation or promise that does not appear in this Agreement. The Parties
further agree that the benefits provided in this Agreement fully satisfy any
obligations Align may have to provide any severance or other benefits to Bonelli
under that certain employment offer letter by and between Bonelli and Align
dated November 6, 2000. This Agreement may be changed only by another written
agreement signed by Bonelli and the Chief Executive Officer of Align.

          11. Enforcement Costs. If an action is brought by either party for
breach of any provision of this Agreement, the non-breaching party shall be
entitled to recover all reasonable attorneys' fees and costs in defending or
bringing such an action.

Date: October 1, 2002                         /s/ Stephen Bonelli
                                              ----------------------------------
                                                  Stephen Bonelli

                                          Align Technology Inc.:

Date: September 30, 2002                  By: /s/ Thomas M. Prescott
                                              ----------------------------------
                                              Thomas M. Prescott
                                              President & CEO

                                   Page 5 of 5

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