Document:

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                                                                     Exhibit 4.5

                                SAP AMERICA, INC.
                       401(k) PROFIT SHARING PLAN & TRUST
                                 AMENDMENT 99-1

      Pursuant to the power reserved to SAP America, Inc. under Section 14.1 of
the SAP America, Inc. Profit Sharing Plan & Trust (the "Plan") as set forth in
the Vanguard Prototype 401(k) Savings Plan (the "Master Document") and its
corresponding Adoption Agreement (the "Adoption Agreement"), the Plan is hereby
amended, effective January 1, 1997 (except as expressly indicated otherwise), as
follows:

      1. Section 2.6 of the Master Document is hereby amended by changing the
reference to "Section 2 of the Adoption Agreement" in the first sentence thereof
to refer to "Section 3 of the Adoption Agreement."

      2. Article 2.6(a) of the Master Document is hereby amended, effective
January 1, 1999 to read, in its entirety, as follows:

      "(a) the Compensation of each Participant for a Plan Year shall include
      all Employee Pre-Tax Contributions made to the plan on behalf of the
      participant for the Plan year and all pre-tax elective contributions made
      to any other plan by the employer for the Plan Year pursuant to a salary
      reduction agreement with the Participant which are not includable in the
      Participant's gross income under Section 125, 402(e)(3), 402(h) or 403(b)
      of the Code, provided that the Employer has elected to treat all such
      pre-tax elective contributions as compensation with respect to all
      employees under all plans of the Employer; and"

      3. Section 3 of the Adoption Agreement is amended, effective January 1,
1999, by deleting all current selections thereunder and by instead selecting the
box captioned "wages for withholding purposes excluding certain items," by
checking the box captioned "other (specify)" under such item, and by inserting
the following items in the line following such box as items excluded from
compensation:

      "(i) amounts contributed by the Employer to the Plan, (ii) fringe
      benefits, (iii) workers' compensation and unemployment benefits, (iv)
      tuition advancements and reimbursements, (v) relocation and housing
      advancements and reimbursements, (vi) cost of living adjustments (vii)
      amounts designated by the Employer as severance payments in connection
      with an Employee's separation from employment, (viii) distributions from
      Employer sponsored nonqualified deferred compensation plans and earnings
      thereon, (ix) sign-on bonus payments provided to an Employee in connection
      with commencement of employment, and (x) for purposes of determining
      Employer Profit Sharing Contributions pursuant to Article 4.11 and
      Employer Matching Contributions pursuant to Article 4.6, amounts in excess
      of $100,000."

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      4. Article 4.11 of the Master Document is amended in its entirety to
provide as follows:

      "4.11 Employer Profit Sharing Contributions

            (a) The Committee shall, at its discretion, credit to each eligible
            Participant's Employer Profit Sharing Contribution Account, a
            contribution in an amount which is in the same proportion that each
            Participant's Compensation for the Plan Year bears to the total
            Compensation of all such Participants for the Plan Year. In order to
            qualify for a Profit Sharing Contribution a Participant must be
            credited with a Year of Service and be actively employed by the
            Employer on the last day of the Plan Year to which the Profit
            Sharing Contribution is attributable. Notwithstanding the preceding
            sentence, a Participant shall be entitled to a Profit Sharing
            Contribution if such Participant (i) completes six (6) consecutive
            months of employment with the Employer during the Plan Year in which
            employment commences and is actively employed by the Employer on the
            last day of the Plan Year to which the Profit Sharing Contribution
            is attributable, or (ii) commenced employment with the Employer on
            or before July 1 of the Plan Year to which such Profit Sharing
            Contribution is attributable and thereafter during such Plan Year
            dies, incurs a Disability or retires on or after the Participant's
            attainment of Normal Retirement Age."

      5. The "Discretionary Formula" paragraph within Section 7 of the Adoption
Agreement is hereby amended by striking the second sentence currently appearing
therein and replacing it with the following sentences:

      "Employer Nonelective Contributions shall be allocated to the Employer
      Nonelective Contribution Accounts of Participants who Participated in the
      Plan at any time during the Plan Year, with the exception of Employer
      Profit Sharing Contributions, which shall be allocated to the Employer
      Profit Sharing Contribution Accounts of Participants who meet the
      eligibility requirements set forth in Article 4.11 of the Plan as amended.
      Employer Nonelective Contributions, including Employer Profit Sharing
      Contributions shall be allocated in accordance with the formula set forth
      in Article 4.11 of the Plan as amended."

      6. Article 6.4 of the Master Document is hereby amended in its entirety to
provide as follows:

      "Forfeitures arising from Employer Profit Sharing Contributions and/or
      Employer Matching Contributions shall be reallocated in the same manner as
      Employer Profit Sharing

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      Contributions are allocated pursuant to Article 4.11 as amended, with the
      exception that the determination and allocation of forfeitures arising
      from Employer Matching Contributions shall be limited to Participants
      eligible for Employer Matching Contributions for the Plan Year. In order
      to qualify for an allocation of forfeitures in a Plan Year, a Participant
      must be credited with a Year of Service and be actively employed by the
      Employer on the last day of the Plan Year to which the forfeiture is
      attributable. Notwithstanding the preceding sentence, a Participant shall
      be entitled to a forfeiture allocation if such Participant (i) completes
      six (6) consecutive months of employment with the Employer during the Plan
      Year in which employment commences and is actively employed by the
      Employer on the last day of the Plan Year to which the forfeiture
      allocation is attributable, or (ii) commenced employment with the Employer
      on or before July 1 of the Plan Year to which such forfeiture allocation
      is attributable and thereafter during such Plan Year dies, incurs a
      Disability or retires on or after the Participant's attainment of Normal
      Retirement Age."

      WHEREFORE, I have executed the foregoing amendment this _________ day of
______________________________ , 199 ______.

                                           By:
                                              ----------------------------------

                                           Name: Lawrence Kleinman
                                                --------------------------------

                                           Title: Vice President Human Resources
                                                 -------------------------------

Witness: _____________________

                                       3<PAGE>   1
                                                                     Exhibit 4.1

NUMBER                               BLAIR                               SHARES
CU                                CORPORATION                           ________
              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

COMMON STOCK                                               COMMON STOCK
    (NEW)                                               CUSIP 092828 10 2
                                             SEE REVERSE FOR CERTAIN DEFINITIONS

THIS
CERTIFIES
THAT

                                ====SPECIMEN====

IS THE OWNER OF

      FULLY PAID AND NON-ASSESSABLE SHARES WITHOUT NOMINAL OR PAR VALUE OF
                              THE COMMON STOCK OF

---============================BLAIR CORPORATION=============================---
(hereinafter called the "Corporation") transferable on the books of the
Corporation by the registered owner hereof in person or by duly authorized
attorney upon surrender of this Certificate properly endorsed.
     This Certificate is not valid unless countersigned by the Transfer Agent
and registered by the Registrar.
     Witness the facsimile seal of the Corporation and the facsimile signatures
of its duly authorized officers.

Dated:                                                    BLAIR CORPORATION

                                [BLAIR CORPORATION        By
                                  CORPORATE SEAL]

      /s/ David A. Blair                                     /s/ John E. Zawacki
      -------------------                                    -------------------
                Secretary                                              President

--------------------------------------------------------------------------------
Countersigned and Registered
                               National City Bank
                               (Cleveland, Ohio)
                                                    Transfer Agent and Registrar

By

                                                            Authorized Signature
--------------------------------------------------------------------------------

<PAGE>   2

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

     TEN COM--as tenants in common   UNIF GIFT MIN ACT--........Custodian.......
     TEN ENT--as tenants by the                          (Cust)          (Minor)
              entireties                           under Uniform Gifts to Minors
     JT TEN --as joint tenants with                Act..........................
              right of survivorship                   (State)
              and not as tenants in
              common
     Additional abbreviations may also be used though not in the above list.

     FOR VALUE RECEIVED,_______________ HEREBY SELL, ASSIGN AND TRANSFER UNTO
     PLEASE INSERT SOCIAL SECURITY OR OTHER
         IDENTIFYING NUMBER OF ASSIGNEE
     --------------------------------------

     --------------------------------------

     ---------------------------------------------------------------
        (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS OF ASSIGNEE)

     ---------------------------------------------------------------

     ---------------------------------------------------------------

                                                               SHARES
     ----------------------------------------------------------
     OF THE CAPITAL STOCK REPRESENTED BY THE WITHIN CERTIFICATE, AND
     DO HEREBY IRREVOCABLY CONSTITUTE AND APPOINT
                                                 ATTORNEY
     --------------------------------------------
     TO TRANSFER THE SAID STOCK ON THE BOOKS OF THE WITHIN NAMED
     CORPORATION WITH FULL POWER OF SUBSTITUTION IN THE PREMISES.
     DATED
          ---------------------------------------

                              -------------------------------------------------
                      NOTICE: THE SIGNATURES TO THIS ASSIGNMENT MUST CORRESPOND
                              WITH THE NAMES AS WRITTEN UPON THE FACE OF THE
                              CERTIFICATE IN EVERY PARTICULAR, WITHOUT
                              ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

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                   THIS SPACE MUST NOT BE COVERED IN ANY WAY

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