Document:

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                                                                  EXHIBIT 10.2.2

                                 PETS.COM, INC.

                        2000 EMPLOYEE STOCK PURCHASE PLAN

        The following constitute the provisions of the 2000 Employee Stock
Purchase Plan of Pets.com, Inc.

        1. PURPOSE. The purpose of the Plan is to provide employees of the
Company and its Designated Subsidiaries with an opportunity to purchase Common
Stock of the Company. It is the intention of the Company to have the Plan
qualify as an "Employee Stock Purchase Plan" under Section 423 of the Code. The
provisions of the Plan shall, accordingly, be construed so as to extend and
limit participation in a manner consistent with the requirements of that section
of the Code.

        2. DEFINITIONS.

                (a) "BOARD" means the Board of Directors of the Company.

                (b) "CODE" means the Internal Revenue Code of 1986, as amended.

                (c) "COMMON STOCK" means the Common Stock of the Company.

                (d) "COMPANY" means Pets.com, Inc., a Delaware corporation.

                (e) "COMPENSATION" means all regular straight time gross
earnings, and shall not include commissions, payments for overtime, shift
premium, incentive compensation, incentive payments, bonuses and other
compensation.

                (f) "CONTINUOUS STATUS AS AN EMPLOYEE" means the absence of any
interruption or termination of service as an Employee. Continuous Status as an
Employee shall not be considered interrupted in the case of (i) sick leave; (ii)
military leave; (iii) any other leave of absence approved by the Administrator,
provided that such leave is for a period of not more than 90 days, unless
reemployment upon the expiration of such leave is guaranteed by contract or
statute, or unless provided otherwise pursuant to Company policy adopted from
time to time; or (iv) in the case of transfers between locations of the Company
or between the Company and its Designated Subsidiaries.

                (g) "CONTRIBUTIONS" means all amounts credited to the account of
a participant pursuant to the Plan.

                (h) "CORPORATE TRANSACTION" means a sale of all or substantially
all of the Company's assets, or a merger, consolidation or other capital
reorganization of the Company with or into another corporation.

                (i) "DESIGNATED SUBSIDIARIES" means the Subsidiaries which have
been designated by the Board from time to time in its sole discretion as
eligible to participate in the Plan; provided however that the Board shall only
have the discretion to designate Subsidiaries if

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the issuance of options to such Subsidiary's Employees pursuant to the Plan
would not cause the Company to incur adverse accounting charges.

                (j) "EMPLOYEE" means any person, including an Officer, who is
customarily employed for at least twenty (20) hours per week and more than five
(5) months in a calendar year by the Company or one of its Designated
Subsidiaries.

                (k) "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended.

                (l) "OFFERING DATE" means the first business day of each
Offering Period of the Plan.

                (m) "OFFERING PERIOD" means a period of twenty-four (24) months
commencing on February 1 and August 1 of each year, except for the first
Offering Period as set forth in Section 4(a).

                (n) "OFFICER" means a person who is an officer of the Company
within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

                (o) "PLAN" means this Employee Stock Purchase Plan.

                (p) "PURCHASE DATE" means the last day of each Purchase Period
of the Plan.

                (q) "PURCHASE PERIOD" means a period of six (6) months within an
Offering Period, except for the first Purchase Period as set forth in Section
4(b).

                (r) "PURCHASE PRICE" means with respect to a Purchase Period an
amount equal to 85% of the Fair Market Value (as defined in Section 7(b) below)
of a Share of Common Stock on the Offering Date or on the Purchase Date,
whichever is lower; provided, however, that in the event (i) of any increase in
the number of Shares available for issuance under the Plan as a result of a
stockholder-approved amendment to the Plan, and (ii) all or a portion of such
additional Shares are to be issued with respect to one or more Offering Periods
that are underway at the time of such increase ("Additional Shares"), and (iii)
the Fair Market Value of a Share of Common Stock on the date of such increase
(the "Approval Date Fair Market Value") is higher than the Fair Market Value on
the Offering Date for any such Offering Period, then in such instance the
Purchase Price with respect to Additional Shares shall be 85% of the Approval
Date Fair Market Value or the Fair Market Value of a Share of Common Stock on
the Purchase Date, whichever is lower.

                (s) "SHARE" means a share of Common Stock, as adjusted in
accordance with Section 19 of the Plan.

                (t) "SUBSIDIARY" means a corporation, domestic or foreign, of
which not less than 50% of the voting shares are held by the Company or a
Subsidiary, whether or not such corporation now exists or is hereafter organized
or acquired by the Company or a Subsidiary.

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        3. ELIGIBILITY.

                (a) Any person who is an Employee as of the Offering Date of a
given Offering Period shall be eligible to participate in such Offering Period
under the Plan, subject to the requirements of Section 5(a) and the limitations
imposed by Section 423(b) of the Code; provided however that eligible Employees
may not participate in more than one Offering Period at a time.

                (b) Any provisions of the Plan to the contrary notwithstanding,
no Employee shall be granted an option under the Plan (i) if, immediately after
the grant, such Employee (or any other person whose stock would be attributed to
such Employee pursuant to Section 424(d) of the Code) would own capital stock of
the Company and/or hold outstanding options to purchase stock possessing five
percent (5%) or more of the total combined voting power or value of all classes
of stock of the Company or of any subsidiary of the Company, or (ii) if such
option would permit his or her rights to purchase stock under all employee stock
purchase plans (described in Section 423 of the Code) of the Company and its
Subsidiaries to accrue at a rate which exceeds Twenty-Five Thousand Dollars
($25,000) of the Fair Market Value (as defined in Section 7(b) below) of such
stock (determined at the time such option is granted) for each calendar year in
which such option is outstanding at any time.

        4. OFFERING PERIODS AND PURCHASE PERIODS.

                (a) OFFERING PERIODS. The Plan shall be implemented by a series
of Offering Periods of twenty-four (24) months duration, with new Offering
Periods commencing on or about February 1 and August 1 of each year (or at such
other time or times as may be determined by the Board of Directors). The first
Offering Period shall commence on the beginning of the effective date of the
Registration Statement on Form S-1 for the initial public offering of the
Company's Common Stock (the "IPO Date") and continue until January 31, 2002. The
Plan shall continue until terminated in accordance with Section 20 hereof. The
Board of Directors of the Company shall have the power to change the duration
and/or the frequency of Offering Periods with respect to future offerings
without stockholder approval if such change is announced at least five (5) days
prior to the scheduled beginning of the first Offering Period to be affected.

                (b) PURCHASE PERIODS. Each Offering Period shall consist of four
(4) consecutive Purchase Periods of six (6) months' duration. The last day of
each Purchase Period shall be the "Purchase Date" for such Purchase Period. A
Purchase Period commencing on February 1 shall end on the next July 31. A
Purchase Period commencing on August 1 shall end on the next January 31. The
first Purchase Period shall commence on the IPO Date and shall end on July 31,
2000. The Board of Directors of the Company shall have the power to change the
duration and/or frequency of Purchase Periods with respect to future purchases
without stockholder approval if such change is announced at least five (5) days
prior to the scheduled beginning of the first Purchase Period to be affected.

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        5. PARTICIPATION.

                (a) An eligible Employee may become a participant in the Plan by
completing a subscription agreement on the form provided by the Company and
filing it with the Company's payroll office prior to the applicable Offering
Date, unless a later time for filing the subscription agreement is set by the
Board for all eligible Employees with respect to a given Offering Period. The
subscription agreement shall set forth the percentage of the participant's
Compensation (subject to Section 6(a) below) to be paid as Contributions
pursuant to the Plan.

                (b) Payroll deductions shall commence on the first payroll
following the Offering Date and shall end on the last payroll paid on or prior
to the last Purchase Period of the Offering Period to which the subscription
agreement is applicable, unless sooner terminated by the participant as provided
in Section 10.

        6. METHOD OF PAYMENT OF CONTRIBUTIONS.

                (a) A participant shall elect to have payroll deductions made on
each payday during the Offering Period in an amount not less than one percent
(1%) and not more than twenty percent (20%) (or such greater percentage as the
Board may establish from time to time before an Offering Date) of such
participant's Compensation on each payday during the Offering Period. All
payroll deductions made by a participant shall be credited to his or her account
under the Plan. A participant may not make any additional payments into such
account.

                (b) A participant may discontinue his or her participation in
the Plan as provided in Section 10, or, on one occasion only during a Purchase
Period may increase and on one occasion only during a Purchase Period may
decrease the rate of his or her Contributions with respect to the Offering
Period by completing and filing with the Company a new subscription agreement
authorizing a change in the payroll deduction rate. The change in rate shall be
effective as of the beginning of the next calendar month following the date of
filing of the new subscription agreement, if the agreement is filed at least ten
(10) business days prior to such date and, if not, as of the beginning of the
next succeeding calendar month.

                (c) Notwithstanding the foregoing, to the extent necessary to
comply with Section 423(b)(8) of the Code and Section 3(b), a participant's
payroll deductions may be decreased by the Company to 0% at any time during a
Purchase Period. Payroll deductions shall re-commence at the rate provided in
such participant's subscription agreement at the beginning of the first Purchase
Period which is scheduled to end in the following calendar year, unless
terminated by the participant as provided in Section 10. In addition, a
participant's payroll deductions may be decreased by the Company to 0% at any
time during a Purchase Period in order to avoid unnecessary payroll
contributions as a result of application of the maximum share limit set forth in
Section 7(a), in which case payroll deductions shall re-commence at the rate
provided in such participant's subscription agreement at the beginning of the
next Purchase Period, unless terminated by the participant as provided in
Section 10.

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        7. GRANT OF OPTION.

                (a) On the Offering Date of each Offering Period, each eligible
Employee participating in such Offering Period shall be granted an option to
purchase on each Purchase Date a number of Shares of the Company's Common Stock
determined by dividing such Employee's Contributions accumulated prior to such
Purchase Date and retained in the participant's account as of the Purchase Date
by the applicable Purchase Price; provided however that the maximum number of
Shares an Employee may purchase during each Purchase Period shall be 2000 Shares
(subject to any adjustment pursuant to Section 19 below), and provided further
that such purchase shall be subject to the limitations set forth in Sections
3(b) and 13.

                (b) The fair market value of the Company's Common Stock on a
given date (the "Fair Market Value") shall be determined by the Board in its
discretion based on the closing sales price of the Common Stock for such date
(or, in the event that the Common Stock is not traded on such date, on the
immediately preceding trading date), as reported by the National Association of
Securities Dealers Automated Quotation (Nasdaq) National Market or, if such
price is not reported, the mean of the bid and asked prices per share of the
Common Stock as reported by Nasdaq or, in the event the Common Stock is listed
on a stock exchange, the Fair Market Value per share shall be the closing sales
price on such exchange on such date (or, in the event that the Common Stock is
not traded on such date, on the immediately preceding trading date), as reported
in The Wall Street Journal. For purposes of the Offering Date under the first
Offering Period under the Plan, the Fair Market Value of a share of the Common
Stock of the Company shall be the Price to Public as set forth in the final
prospectus filed with the Securities and Exchange Commission pursuant to Rule
424 under the Securities Act of 1933, as amended.

        8. EXERCISE OF OPTION. Unless a participant withdraws from the Plan as
provided in Section 10, his or her option for the purchase of Shares will be
exercised automatically on each Purchase Date of an Offering Period, and the
maximum number of full Shares subject to the option will be purchased at the
applicable Purchase Price with the accumulated Contributions in his or her
account. No fractional Shares shall be issued. The Shares purchased upon
exercise of an option hereunder shall be deemed to be transferred to the
participant on the Purchase Date. During his or her lifetime, a participant's
option to purchase Shares hereunder is exercisable only by him or her.

        9. DELIVERY. As promptly as practicable after each Purchase Date of each
Offering Period, the Company shall arrange the delivery to each participant, as
appropriate, the Shares purchased upon exercise of his or her option. No
fractional Shares shall be purchased; any payroll deductions accumulated in a
participant's account which are not sufficient to purchase a full Share shall be
retained in the participant's account for the subsequent Purchase Period or
Offering Period, subject to earlier withdrawal by the participant as provided in
Section 10 below. Any other amounts left over in a participant's account after a
Purchase Date shall be returned to the participant.

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        10. VOLUNTARY WITHDRAWAL; TERMINATION OF EMPLOYMENT.

                (a) A participant may withdraw all but not less than all the
Contributions credited to his or her account under the Plan at any time prior to
each Purchase Date by giving written notice to the Company. All of the
participant's Contributions credited to his or her account will be paid to him
or her promptly after receipt of his or her notice of withdrawal and his or her
option for the current period will be automatically terminated, and no further
Contributions for the purchase of Shares will be made during the Offering
Period.

                (b) Upon termination of the participant's Continuous Status as
an Employee prior to the Purchase Date of an Offering Period for any reason,
including retirement or death, the Contributions credited to his or her account
will be returned to him or her or, in the case of his or her death, to the
person or persons entitled thereto under Section 14, and his or her option will
be automatically terminated.

                (c) In the event an Employee fails to remain in Continuous
Status as an Employee of the Company for at least twenty (20) hours per week
during the Offering Period in which the employee is a participant, he or she
will be deemed to have elected to withdraw from the Plan and the Contributions
credited to his or her account will be returned to him or her and his or her
option terminated.

                (d) A participant's withdrawal from an offering will not have
any effect upon his or her eligibility to participate in a succeeding offering
or in any similar plan which may hereafter be adopted by the Company.

        11. AUTOMATIC WITHDRAWAL. If the Fair Market Value of the Shares on any
Purchase Date of an Offering Period is less than the Fair Market Value of the
Shares on the Offering Date for such Offering Period, then every participant
shall automatically (i) be withdrawn from such Offering Period at the close of
such Purchase Date and after the acquisition of Shares for such Purchase Period,
and (ii) be enrolled in the Offering Period commencing on the first business day
subsequent to such Purchase Period.

        12. INTEREST. No interest shall accrue on the Contributions of a
participant in the Plan.

        13. STOCK.

                (a) Subject to adjustment as provided in Section 19, the maximum
number of Shares which shall be made available for sale under the Plan shall be
400,000 Shares, plus an annual increase on the first day of each of the
Company's fiscal years during the term of the Plan beginning in 2001 and ending
in 2010 equal to the lesser of (i) 240,000 Shares, (ii) one percent (1%) of the
Shares outstanding on the last day of the immediately preceding fiscal year, or
(iii) such lesser number of Shares as is determined by the Board. If the Board
determines that, on a given Purchase Date, the number of shares with respect to
which options are to be exercised may exceed (i) the number of shares of Common
Stock that were available for sale under the Plan on the Offering Date of the
applicable Offering Period, or (ii) the number of shares available for sale

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under the Plan on such Purchase Date, the Board may in its sole discretion
provide (x) that the Company shall make a pro rata allocation of the Shares of
Common Stock available for purchase on such Offering Date or Purchase Date, as
applicable, in as uniform a manner as shall be practicable and as it shall
determine in its sole discretion to be equitable among all participants
exercising options to purchase Common Stock on such Purchase Date, and continue
all Offering Periods then in effect, or (y) that the Company shall make a pro
rata allocation of the shares available for purchase on such Offering Date or
Purchase Date, as applicable, in as uniform a manner as shall be practicable and
as it shall determine in its sole discretion to be equitable among all
participants exercising options to purchase Common Stock on such Purchase Date,
and terminate any or all Offering Periods then in effect pursuant to Section 20
below. The Company may make pro rata allocation of the Shares available on the
Offering Date of any applicable Offering Period pursuant to the preceding
sentence, notwithstanding any authorization of additional Shares for issuance
under the Plan by the Company's stockholders subsequent to such Offering Date.

                (b) The participant shall have no interest or voting right in
Shares covered by his or her option until such option has been exercised.

                (c) Shares to be delivered to a participant under the Plan will
be registered in the name of the participant or in the name of the participant
and his or her spouse.

        14. ADMINISTRATION. The Board, or a committee named by the Board, shall
supervise and administer the Plan and shall have full power to adopt, amend and
rescind any rules deemed desirable and appropriate for the administration of the
Plan and not inconsistent with the Plan, to construe and interpret the Plan, and
to make all other determinations necessary or advisable for the administration
of the Plan.

        15. DESIGNATION OF BENEFICIARY.

                (a) A participant may file a written designation of a
beneficiary who is to receive any Shares and cash, if any, from the
participant's account under the Plan in the event of such participant's death
subsequent to the end of a Purchase Period but prior to delivery to him or her
of such Shares and cash. In addition, a participant may file a written
designation of a beneficiary who is to receive any cash from the participant's
account under the Plan in the event of such participant's death prior to the
Purchase Date of an Offering Period. If a participant is married and the
designated beneficiary is not the spouse, spousal consent shall be required for
such designation to be effective.

                (b) Such designation of beneficiary may be changed by the
participant (and his or her spouse, if any) at any time by written notice. In
the event of the death of a participant and in the absence of a beneficiary
validly designated under the Plan who is living at the time of such
participant's death, the Company shall deliver such Shares and/or cash to the
executor or administrator of the estate of the participant, or if no such
executor or administrator has been appointed (to the knowledge of the Company),
the Company, in its discretion, may deliver such Shares and/or cash to the
spouse or to any one or more dependents or relatives of the participant,

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or if no spouse, dependent or relative is known to the Company, then to such
other person as the Company may designate.

        16. TRANSFERABILITY. Neither Contributions credited to a participant's
account nor any rights with regard to the exercise of an option or to receive
Shares under the Plan may be assigned, transferred, pledged or otherwise
disposed of in any way (other than by will, the laws of descent and
distribution, or as provided in Section 15) by the participant. Any such attempt
at assignment, transfer, pledge or other disposition shall be without effect,
except that the Company may treat such act as an election to withdraw funds in
accordance with Section 10.

        17. USE OF FUNDS. All Contributions received or held by the Company
under the Plan may be used by the Company for any corporate purpose, and the
Company shall not be obligated to segregate such Contributions.

        18. REPORTS. Individual accounts will be maintained for each participant
in the Plan. Statements of account will be given to participating Employees at
least annually, which statements will set forth the amounts of Contributions,
the per Share Purchase Price, the number of Shares purchased and the remaining
cash balance, if any.

        19. ADJUSTMENTS UPON CHANGES IN CAPITALIZATION; CORPORATE TRANSACTIONS.

                (a) ADJUSTMENT. Subject to any required action by the
stockholders of the Company, the number of Shares covered by each option under
the Plan which has not yet been exercised and the number of Shares which have
been authorized for issuance under the Plan but have not yet been placed under
option (collectively, the "Reserves"), as well as the maximum number of shares
of Common Stock which may be purchased by a participant in a Purchase Period,
the number of shares of Common Stock set forth in Section 13(a) above, and the
price per Share of Common Stock covered by each option under the Plan which has
not yet been exercised, shall be proportionately adjusted for any increase or
decrease in the number of issued Shares resulting from a stock split, reverse
stock split, stock dividend, combination or reclassification of the Common Stock
(including any such change in the number of Shares of Common Stock effected in
connection with a change in domicile of the Company), or any other increase or
decrease in the number of Shares effected without receipt of consideration by
the Company; provided however that conversion of any convertible securities of
the Company shall not be deemed to have been "effected without receipt of
consideration." Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issue by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of Shares subject to an option.

                (b) CORPORATE TRANSACTIONS. In the event of a dissolution or
liquidation of the Company, any Purchase Period and Offering Period then in
progress will terminate immediately prior to the consummation of such action,
unless otherwise provided by the Board. In the event of a Corporate Transaction,
each option outstanding under the Plan shall be assumed or an equivalent option
shall be substituted by the successor corporation or a parent or Subsidiary of
such successor corporation. In the event that the successor corporation refuses
to assume or

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substitute for outstanding options, each Purchase Period and Offering Period
then in progress shall be shortened and a new Purchase Date shall be set (the
"New Purchase Date"), as of which date any Purchase Period and Offering Period
then in progress will terminate. The New Purchase Date shall be on or before the
date of consummation of the transaction and the Board shall notify each
participant in writing, at least ten (10) days prior to the New Purchase Date,
that the Purchase Date for his or her option has been changed to the New
Purchase Date and that his or her option will be exercised automatically on the
New Purchase Date, unless prior to such date he or she has withdrawn from the
Offering Period as provided in Section 10. For purposes of this Section 19, an
option granted under the Plan shall be deemed to be assumed, without limitation,
if, at the time of issuance of the stock or other consideration upon a Corporate
Transaction, each holder of an option under the Plan would be entitled to
receive upon exercise of the option the same number and kind of shares of stock
or the same amount of property, cash or securities as such holder would have
been entitled to receive upon the occurrence of the transaction if the holder
had been, immediately prior to the transaction, the holder of the number of
Shares of Common Stock covered by the option at such time (after giving effect
to any adjustments in the number of Shares covered by the option as provided for
in this Section 19); provided however that if the consideration received in the
transaction is not solely common stock of the successor corporation or its
parent (as defined in Section 424(e) of the Code), the Board may, with the
consent of the successor corporation, provide for the consideration to be
received upon exercise of the option to be solely common stock of the successor
corporation or its parent equal in Fair Market Value to the per Share
consideration received by holders of Common Stock in the transaction.

        The Board may, if it so determines in the exercise of its sole
discretion, also make provision for adjusting the Reserves, as well as the price
per Share of Common Stock covered by each outstanding option, in the event that
the Company effects one or more reorganizations, recapitalizations, rights
offerings or other increases or reductions of Shares of its outstanding Common
Stock, and in the event of the Company's being consolidated with or merged into
any other corporation.

        20. AMENDMENT OR TERMINATION.

                (a) The Board may at any time and for any reason terminate or
amend the Plan. Except as provided in Section 19, no such termination of the
Plan may affect options previously granted, provided that the Plan or an
Offering Period may be terminated by the Board on a Purchase Date or by the
Board's setting a new Purchase Date with respect to an Offering Period and
Purchase Period then in progress if the Board determines that termination of the
Plan and/or the Offering Period is in the best interests of the Company and the
stockholders or if continuation of the Plan and/or the Offering Period would
cause the Company to incur adverse accounting charges as a result of a change
after the effective date of the Plan in the generally accepted accounting rules
applicable to the Plan. Except as provided in Section 19 and in this Section 20,
no amendment to the Plan shall make any change in any option previously granted
which adversely affects the rights of any participant. In addition, to the
extent necessary to comply with Rule 16b-3 under the Exchange Act, or under
Section 423 of the Code (or any

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successor rule or provision or any applicable law or regulation), the Company
shall obtain stockholder approval in such a manner and to such a degree as so
required.

                (b) Without stockholder consent and without regard to whether
any participant rights may be considered to have been adversely affected, the
Board (or its committee) shall be entitled to change the Offering Periods and
Purchase Periods, limit the frequency and/or number of changes in the amount
withheld during an Offering Period, establish the exchange ratio applicable to
amounts withheld in a currency other than U.S. dollars, permit payroll
withholding in excess of the amount designated by a participant in order to
adjust for delays or mistakes in the Company's processing of properly completed
withholding elections, establish reasonable waiting and adjustment periods
and/or accounting and crediting procedures to ensure that amounts applied toward
the purchase of Common Stock for each participant properly correspond with
amounts withheld from the participant's Compensation, and establish such other
limitations or procedures as the Board (or its committee) determines in its sole
discretion advisable which are consistent with the Plan.

        21. NOTICES. All notices or other communications by a participant to the
Company under or in connection with the Plan shall be deemed to have been duly
given when received in the form specified by the Company at the location, or by
the person, designated by the Company for the receipt thereof.

        22. CONDITIONS UPON ISSUANCE OF SHARES. Shares shall not be issued with
respect to an option unless the exercise of such option and the issuance and
delivery of such Shares pursuant thereto shall comply with all applicable
provisions of law, domestic or foreign, including, without limitation, the
Securities Act of 1933, as amended, the Exchange Act, the rules and regulations
promulgated thereunder, applicable state securities laws and the requirements of
any stock exchange upon which the Shares may then be listed, and shall be
further subject to the approval of counsel for the Company with respect to such
compliance.

        As a condition to the exercise of an option, the Company may require the
person exercising such option to represent and warrant at the time of any such
exercise that the Shares are being purchased only for investment and without any
present intention to sell or distribute such Shares if, in the opinion of
counsel for the Company, such a representation is required by any of the
aforementioned applicable provisions of law.

        23. TERM OF PLAN; EFFECTIVE DATE. The Plan shall become effective upon
the IPO Date. It shall continue in effect for a term of ten (10) years unless
sooner terminated under Section 20.

        24. ADDITIONAL RESTRICTIONS OF RULE 16b-3. The terms and conditions of
options granted hereunder to, and the purchase of Shares by, persons subject to
Section 16 of the Exchange Act shall comply with the applicable provisions of
Rule 16b-3. This Plan shall be deemed to contain, and such options shall
contain, and the Shares issued upon exercise thereof shall be subject to, such
additional conditions and restrictions as may be required by Rule 16b-3 to
qualify for the maximum exemption from Section 16 of the Exchange Act with
respect to Plan transactions.

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                                                                   EXHIBIT 10.16

                                       November 15, 1999
                                       REVISED OFFER LETTER

Ralph E. Lewis
1479 Brookfield Road
Yardley PA  19067

Dear Ralph,

        I am pleased to offer you the position of Vice President, Distribution
and Logistics. Speaking for myself, as well as the other members of the
Company's management team, we continue to be impressed with your experience and
we look forward to your future success with the Company.

        The terms of your new position with the Company are as set forth below:

        1. POSITION.

               a. You will become Vice President, Distribution and Logistics,
working out of the Company's headquarters office in San Francisco, California.
As a member of the Company's management team you will report to the Chief
Executive Officer.

               b. You agree to the best of your ability and experience that you
will at all times loyally and conscientiously perform all of the duties and
obligations required of and from you pursuant to the express and implicit terms
hereof, and to the reasonable satisfaction of the Company. During the term of
your employment, you further agree that you will devote all of your business
time and attention to the business of the Company, the Company will be entitled
to all of the benefits and profits arising from or incident to all such work
services and advice, you will not render commercial or professional services of
any nature to any person or organization, whether or not for compensation,
without the prior written consent of the Company's Board of Directors, and you
will not directly or indirectly engage or participate in any business that is
competitive in any manner with the business of the Company. Nothing in this
letter agreement will prevent you from accepting speaking or presentation
engagements in exchange for honoraria or from serving on boards of charitable
organizations, or from owning no more than one percent (1%) of the outstanding
equity securities of a corporation whose stock is listed on a national stock
exchange.

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<PAGE>   2

        2. START DATE. Subject to fulfillment of any conditions imposed by this
letter agreement, you will commence this new position with the Company on or
before November 18, 1999.

        3. PROOF OF RIGHT TO WORK. For purposes of federal immigration law, you
will be required to provide to the Company documentary evidence of your identity
and eligibility for employment in the United States. Such documentation must be
provided to us within three (3) business days of your date of hire, or our
employment relationship with you may be terminated.

        4. COMPENSATION.

               a. BASE SALARY. You will be paid a monthly salary of $16,666.66,
which is equivalent to $200,000.00 on an annualized basis. Your salary will be
payable pursuant to the Company's regular payroll policy.

               b. BONUS. You will be eligible to receive a one time bonus of
$20,000.00 and an additional option to purchase 25,000 shares of the Company's
Common Stock if you begin employment with the Company on or before December 1,
1999. In the unlikely event that you voluntarily terminate your employment with
the Company before the end of six (6) months of employment, you agree to repay
the Company the bonus.

               c. RELOCATON BONUS. In connection with your relocation from
Pennsylvania to California, the Company will provide you with a $50,000.00
Relocation allowance, grossed up to cover taxes you would be expected to pay on
the $50,000.00 allowance. In the unlikely event that you voluntarily terminate
your employment with the Company before the end of one year of employment, you
agree to repay the Company the relocation allowance amount, pro-rated for months
of service with the Company. Any amounts received by you for relocation expense
reimbursement will be reported as taxable income to you in the year received as
required by applicable tax law.

        5. STOCK OPTIONS.

               a. INITIAL GRANT. In connection with the commencement of your
employment, the Company will recommend that the Board of Directors grant you an
option to purchase 150,000 shares of the Company's Common Stock ("Shares") with
an exercise price equal to the fair market value on the date of the grant. These
option shares will vest at the rate of 25% one year after your hire date and
1/48th per month thereafter. Vesting will, of course, depend on your continued
employment with the Company. The option will be an incentive stock option to the
maximum extent allowed by the tax code and will be subject to the terms of the
Company's 1999 Stock Plan and the Stock Option Agreement between you and the
Company.

        6. BENEFITS.

                                      -2-
<PAGE>   3

               a. EMPLOYEE BENEFITS On the first of the month following your
hire date, you will be eligible to participate in employee medical, dental and
vision benefits.

               b. PERSONAL TIME OFF (PTO) You will be entitled to 10 days paid
time off per year, pro-rated for the remainder of this calendar year. You will
begin accruing PTO from your first day of employment. Your accrual amount will
increase to 15 days in the next calendar year.

               c. COMPANY HOLIDAYS You will be eligible for all Company
holidays.

        7. CONFIDENTIAL INFORMATION AND INVENTION ASSIGNMENT AGREEMENT. Your
acceptance of this offer and commencement of employment with the Company is
contingent upon the execution, and delivery to an officer of the Company, of the
Company's Confidential Information and Invention Assignment Agreement, a copy of
which is enclosed for your review and execution (the "Confidentiality
Agreement"), prior to or on your Start Date.

        8. CONFIDENTIALITY OF TERMS. You agree to follow the Company's strict
policy that employees must not disclose, either directly or indirectly, any
information, including any of the terms of this agreement, regarding salary,
bonuses, or stock purchase or option allocations to any person, including other
employees of the Company; provided, however, that you may discuss such terms
with members of your immediate family and any legal, tax or accounting
specialists who provide you with individual legal, tax or accounting advice.

        9. AT-WILL EMPLOYMENT. Your employment with the Company will be on an
"at will" basis, meaning that either you or the Company may terminate your
employment at any time for any reason or no reason.

        10. TERMINATION. In the event of a sale or merger of the Company, in
which more than fifty-one percent (51%) of the voting power of the Company is
transferred to a third party and your employment is terminated with or without
cause within one (1) year after the acquisition or the office is moved more than
fifty (50) miles of its San Francisco location, you will receive a severance
equal to three (3) months of your current monthly salary. If you are terminated
from the company with or without cause, you will receive a severance equal to
three (3) months of your current monthly salary.

        Ralph, we are all delighted to be able to extend you this offer and look
forward to working with you. To indicate your acceptance of the Company's offer,
please sign and date this letter in the space provided below and return it to
me, along with a signed and dated copy of the Confidentiality Agreement. This
letter, together with the Confidentiality Agreement, set forth the terms of your
employment with the Company and supersede any prior representations or
agreements, whether written or oral. This letter may not be modified or amended
except by a written agreement, signed by the Company and by you.

                                      -3-
<PAGE>   4

           THIS OFFER EXPIRES MONDAY NOVEMBER 15, 1999, 6:00 PM (PST).

                                                   Very truly yours,

                                                   PETS.COM, INC.

                                                   /s/ Julie Wainwright
                                                   -----------------------
                                                   Julie Wainwright,
                                                   Chief Executive Officer

ACCEPTED AND AGREED:

/s/ Ralph Lewis
-----------------------------
Ralph Lewis
Date: 11-15-99
     ------------------------

                                      -4-
<PAGE>   5

                                 January 7, 2000

Ralph E. Lewis
1479 Brookfield Road
Yardley PA  19067

        Re:  AMENDMENT TO OFFER LETTER

Dear Ralph,

        This letter shall serve to amend your revised offer letter dated
November 15, 1999 (the "Offer Letter") and your stock option agreement with
Pets.com, Inc. Section 5 of the Offer Letter is hereby amended to read in full
as follows:

        "5.    STOCK OPTIONS. In connection with the commencement of your
employment, the Company will recommend that the Board of Directors grant you an
option to purchase 175,000 shares of the Company's Common Stock ("Shares") with
an exercise price equal to the fair market value on the date of the grant. These
option shares will vest at the rate of 25% one year after your hire date and
1/48th per month thereafter. Vesting will, of course, depend on your continued
employment with the Company. In the event of a sale or merger of the Company,
in which more than 51% of the voting power of the Company is transferred to a
third party, you are terminated without cause or you terminate as a result of a
constructive termination, 50% of your remaining unvested shares will accelerate
and become fully vested. The option will be an incentive stock option to the
maximum extent allowed by the tax code and will be subject to the terms of the
Company's 1999 Stock Plan and the Stock Option Agreement between you and the
Company."

        All other provisions of your offer letter will remain the same. We hope
that you find the foregoing amended terms acceptable. Please indicate your
agreement and acceptance of these terms by signing and dating the enclosed
duplicate original of this letter and returning it to me.

                                                   Very truly yours,

                                                   PETS.COM, INC.

                                                   /s/ Julie Wainwright
                                                   -----------------------
                                                   Julia L. Wainwright,
                                                   Chief Executive Officer

ACCEPTED AND AGREED:

/s/ Ralph Lewis
-----------------------------
Ralph E. Lewis
Date:
     ------------------------

                                      -5-

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