Document:

<PAGE>

                                                                   EXHIBIT 10.89

                               AMENDMENT NO. 4 TO
                              EMPLOYMENT AGREEMENT
                                 BY AND BETWEEN
                           I.C. ISAACS & COMPANY L.P.
                                       AND
                               EUGENE C. WIELEPSKI

         THIS AMENDMENT NO. 4, dated as of March 31, 2001, is made a part of
that certain EXECUTIVE EMPLOYMENT AGREEMENT, dated as of May 15, 1997, by and
between I. C. Isaacs & Company L.P. (the "Company") and Eugene C. Wielepski (the
"Executive"), as amended by Amendment No. 1 dated as of August 27, 1998,
Amendment No. 2 dated as of February 11, 1999, and Amendment No. 3 dated January
3, 2000, (collectively, the "Agreement"). It is intended by the parties that the
terms of this Amendment No. 4, to the extent that they are more specific than
the terms contained in the Agreement, or to the extent that they should conflict
with the terms contained in the Agreement, shall supersede the terms of the
Agreement. Section numbers utilized in this Amendment No. 4 correspond, where
applicable, to section numbers used in the Agreement.

                              W I T N E S S E T H:
                              - - - - - - - - - -

         Accordingly, in consideration of the mutual covenants and
representations contained herein and the mutual benefits derived herefrom, the
parties hereto agree as follows:

         1.       Paragraph 2 is hereby restated in its entirety as follows:

                  2. TERM. This Agreement shall begin May 15, 1997 and shall
                  continue until May 15, 2002 (the "Employment Period").
                  Thereafter, this Agreement shall renew automatically from
                  Employment Year to Employment Year, subject to the right of
                  either party to terminate this Agreement as of the end of any
                  Employment Year upon sixty (60) days' prior written notice to
                  the other party. An "Employment Year" begins each May 15 and
                  ends on the following May 15.

         2. The reference to May 15, 2001 in the first sentence of Paragraph 3
is hereby replaced with a reference to May 15, 2002.

<PAGE>

         IN WITNESS WHEREOF, the parties have executed and delivered this
Amendment No. 4 on the date first above written.

                                       I.C. ISAACS & COMPANY L.P.

                                       By:   I.C. ISAACS & COMPANY, INC.
                                             its general partner

                                       By:  /s/ ROBERT J. ARNOT
                                            ------------------------------
                                            Robert J. Arnot, President

                                       EXECUTIVE

                                       By:  /s/ EUGENE C. WIELEPSKI
                                            -------------------------------
                                            Eugene C. Wielepski

                                       2<PAGE>
                                                                    Exhibit 10.1

                                                                  EXECUTION COPY

                                 FIFTH AMENDMENT

         FIFTH AMENDMENT, dated as of May 11, 2001 (this "AMENDMENT"), to the
Second Amended and Restated Credit Agreement, dated as of September 15, 1998 (as
amended, supplemented or otherwise modified from time to time, the "CREDIT
AGREEMENT"), among Hexcel Corporation (the "COMPANY") and the Foreign Borrowers
from time to time party thereto (together with the Company, the "BORROWERS"),
the banks and other financial institutions from time to time parties thereto
(the "LENDERS"), Citibank, N.A., as Documentation Agent, and Credit Suisse First
Boston, as Administrative Agent (the "ADMINISTRATIVE AGENT").

                              W I T N E S S E T H:
                              - - - - - - - - - -

         WHEREAS, pursuant to the Credit Agreement, the Lenders have agreed to
make, and have made, certain loans and other extensions of credit to the
Borrowers; and

         WHEREAS, the Borrowers have requested, and, upon this Amendment
becoming effective, the Lenders shall have agreed, that certain provisions of
the Credit Agreement be amended in the manner provided for in this Amendment.

         NOW, THEREFORE, for valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, and in consideration of the premises and
mutual agreements contained herein, the parties hereto hereby agree as follows:

                            SECTION 1. DEFINED TERMS

         DEFINED TERMS. Unless otherwise defined herein, capitalized terms used
herein have the meanings given to such terms in the Credit Agreement.

                              SECTION 2. AMENDMENTS

         2.1. AMENDMENT TO SUBSECTION 1.1. Subsection 1.1 of the Credit
Agreement is hereby amended:

                  (a) by adding at the end of the definition of "EBITDA" the
         following:

                  "; PROVIDED, HOWEVER, that in any computation of EBITDA for
         the second quarter of the Borrower's 2001 fiscal year (or for any four
         quarter period which includes such quarter) up to $5,000,000 in
         compensation-related expenses reflected in the Company's consolidated
         income statement for such quarter that are associated with the
         retirement by reason of disability of Mr. John J. Lee may be
         disregarded"

<PAGE>

                                                                              2

                  (b) for and during the period from the Effective Date (as
         defined below) to and including the date upon which the
         Administrative Agent receives the financial statements and
         compliance certificate required to be delivered with respect to the
         second fiscal quarter of 2002 pursuant to subsections 13.1 and 13.2
         of the Credit Agreement, by replacing in its entirety the table of
         Leverage Ratios and Applicable Margins contained in the definition
         of "Applicable Margin" with the following new table:

<TABLE>
<CAPTION>
-------------------------------------------------------------------------------------------------------------
                                                                    Applicable Margin
                                             ----------------------------------------------------------------
                                                     Tranche A Loans
                                                  Revolving Credit Loans
                                                     Swing Line Loans
                                                 European Revolving Loans              Tranche B Loans
                                             ----------------------------------------------------------------
                                                                                     Euro-
             Leverage Ratio                    Eurocurrency                         Currency        ABR
                                                   Loans         ABR Loans            Loans         Loans
----------------------------------------     ---------------   --------------   -----------------------------
<S>                                            <C>               <C>                <C>           <C>
  Greater than or equal to 5.0 to 1.0            275 b.p.         175 b.p.          325 b.p.      225 b.p.
  Greater than or equal to 4.5 to 1.0,           250 b.p.         150 b.p.          300 b.p.      200 b.p.
        but less than 5.0 to 1.0
  Greater than or equal to 4.0 to 1.0,           225 b.p.         125 b.p.          275 b.p.      175 b.p.
        but less than 4.5 to 1.0
  Greater than or equal to 3.5 to 1.0,           200 b.p.         100 b.p.          275 b.p.      175 b.p.
        but less than 4.0 to 1.0
  Greater than or equal to 3.0 to 1.0,           150 b.p.         50 b.p.           225 b.p.      125 b.p.
        but less than 3.5 to 1.0
  Greater than or equal to 2.5 to 1.0,          112.5 b.p.        25 b.p.           200 b.p.      100 b.p.
        but less than 3.0 to 1.0
          Less than 2.5 to 1.0                   100 b.p.         25 b.p.           200 b.p.      100 b.p.
-------------------------------------------------------------------------------------------------------------
</TABLE>

                  (c) by deleting "$30,000,000" where it appears in the
         definition of "Fixed Charge Coverage Ratio" and by inserting, in
         lieu thereof, "$20,000,000".

                  (d) by deleting "14.8(j)" where it appears in the
         definition of "Investment" and by inserting, in lieu thereof,
         "14.8(k)".

         2.2. AMENDMENT TO SUBSECTION 14.1(a). Subsection 14.1(a) is hereby
amended by deleting such subsection in its entirety and by substituting
therefor the following:

                  (a) MINIMUM INTEREST COVERAGE RATIO. Permit the Interest
         Coverage Ratio of the Company and its Subsidiaries on the last day of
         any fiscal quarter of the Company occurring during a period set forth
         below to be less than the ratio set forth opposite such period:

<PAGE>

                                                                              3

<TABLE>
<CAPTION>
----------------------------------------------------------------------------
                       Period                                  Ratio
------------------------------------------------       ---------------------
<S>                                                         <C>
          January 1, 2000 - March 31, 2000                  1.80 to 1.0
           April 1, 2000 - June 30, 2000                    1.80 to 1.0
         July 1, 2000 - September 30, 2000                  1.80 to 1.0
        October 1, 2000 - December 31, 2000                 1.85 to 1.0
          January 1, 2001 - March 31, 2001                  2.25 to 1.0
           April 1, 2001 - June 30, 2001                    2.10 to 1.0
         July 1, 2001 - September 30, 2001                  2.10 to 1.0
        October 1, 2001 - December 31, 2001                 2.15 to 1.0
          January 1, 2002 - March 31, 2002                  2.20 to 1.0
           April 1, 2002 - June 30, 2002                    2.25 to 1.0
             July 1, 2002 - Thereafter                      2.50 to 1.0
----------------------------------------------------------------------------
</TABLE>

         2.3. AMENDMENT TO SUBSECTION 14.1(b). Subsection 14.1(b) of the Credit
Agreement is hereby amended by deleting such subsection in its entirety and by
substituting therefor the following:

                  (b) MAXIMUM LEVERAGE RATIO. Permit the Leverage Ratio of the
         Company and its Subsidiaries on the last day of any fiscal quarter of
         the Company occurring during a period set forth below to be greater
         than the ratio set forth opposite such period:

<TABLE>
<CAPTION>
----------------------------------------------------------------------------
                       Period                                  Ratio
--------------------------------------------------      --------------------
<S>                                                         <C>
          January 1, 2000 - March 31, 2000                  6.15 to 1.0
           April 1, 2000 - June 30, 2000                    6.15 to 1.0
         July 1, 2000 - September 30, 2000                  6.15 to 1.0
        October 1, 2000 - December 31, 2000                 5.75 to 1.0
          January 1, 2001 - March 31, 2001                  5.00 to 1.0
           April 1, 2001 - June 30, 2001                    5.25 to 1.0
         July 1, 2001 - September 30, 2001                  5.25 to 1.0
        October 1, 2001 - December 31, 2001                 5.25 to 1.0
          January 1, 2002 - March 31, 2002                  5.00 to 1.0
           April 1, 2002 - June 30, 2002                    4.75 to 1.0
             July 1, 2002 - Thereafter                      4.50 to 1.0
----------------------------------------------------------------------------
</TABLE>

<PAGE>

                                                                              4

         2.4. AMENDMENT TO SUBSECTION 14.8(k). For and during the period from
the Effective Date (as defined below) to and including June 30, 2002 only,
subsection 14.8(k) of the Credit Agreement is hereby amended by replacing
clause (i) in its entirety with the following new clause (i):

                  "(i) the aggregate amount of all Investments (with the amount
         of any Guarantee Obligations being deemed to be the amount so
         guaranteed) made by the Company and its Subsidiaries in reliance upon
         the provisions of this subsection 14.8(k) does not exceed $50,000,000"
         and

                            SECTION 3. MISCELLANEOUS

         3.1. CONDITIONS TO EFFECTIVENESS OF THIS AMENDMENT. This Amendment
shall become effective (as of the date first set forth above) on the date
(the "EFFECTIVE DATE") upon which (a)the Administrative Agent shall have
received counterparts hereof, duly executed and delivered by each Borrower,
the Documentation Agent, the Administrative Agent, each Subsidiary Guarantor
and the Majority Lenders and (b) the Amendment Fee specified in Section 3.4
of this Amendment shall have been paid.

         3.2. REPRESENTATIONS AND WARRANTIES. The Company, as of the date
hereof after giving effect to the amendments contained herein, hereby
confirms, reaffirms and restates the representations and warranties made by
it and each Foreign Borrower in Subsection 11 of the Credit Agreement and
otherwise in the Credit Documents to which it is a party; PROVIDED that each
reference to the Credit Agreement therein shall be deemed to be a reference
to the Credit Agreement after giving effect to this Amendment.

         3.3. LIMITED EFFECT. The execution, delivery and effectiveness of
this Amendment shall not, except as expressly provided herein, operate as a
waiver of any right, power or remedy of any Lender or the Administrative
Agent under any of the Credit Documents, nor constitute a waiver or amendment
of any provisions of any of the Credit Documents. Except as expressly
modified herein, all of the provisions and covenants of the Credit Agreement
and the other Credit Documents are and shall continue to remain in full force
and effect in accordance with the terms thereof and are hereby in all
respects ratified and confirmed.

         3.4. AMENDMENT FEE. The Company shall pay to the Administrative
Agent, for the account of each Lender executing this Amendment on or before
May 11, 2001, an amendment fee (the "AMENDMENT FEE") equal to 25 b.p. of each
such Lender's applicable (i) Commitment, in the case of Revolving Credit
Commitment, European Loan Commitment or European Overdraft Commitment and
(ii) outstanding Loans, in the case of Tranche A Loans and Tranche B Loans.
Such Amendment Fee shall be calculated immediately prior to the effectiveness
of this Amendment and shall be payable on the Effective Date.

         3.5. COUNTERPARTS. This Amendment may be executed by one or more of
the parties hereto in any number of separate counterparts (which may include
counterparts delivered by facsimile transmission), and all of said
counterparts taken together shall be deemed to constitute

<PAGE>

                                                                              5

one and the same instrument. Any executed counterpart delivered by facsimile
transmission shall be effective as for all purposes hereof.

         3.6. GOVERNING LAW. THIS AMENDMENT AND THE RIGHTS AND OBLIGATIONS OF
THE PARTIES HEREUNDER SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN
ACCORDANCE WITH, THE LAW OF THE STATE OF NEW YORK.

                                  (End of Page)

<PAGE>

                                                                              6

         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be duly executed and delivered by their respective proper and duly authorized
officers as of the day and year first above written.

                                            HEXCEL CORPORATION
                                            HEXCEL COMPOSITES S.A. (Belgium)
                                            HEXCEL (U.K.) LIMITED
                                            HEXCEL COMPOSITES S.A. (France)
                                            HEXCEL COMPOSITES LIMITED
                                            HEXCEL COMPOSITES GMBH (Austria)
                                            HEXCEL S.A. (France)
                                            HEXCEL COMPOSITES, S.A. (Spain)
                                            HEXCEL FABRICS S.A.
                                            HEXCEL COMPOSITES GMBH (Germany)
                                            HEXCEL HOLDINGS (UK) LIMITED

                                            By:
                                               --------------------------------
                                                 Name:
                                                 Title:

<PAGE>

                                                                              7

CREDIT SUISSE FIRST BOSTON, as              AERIES FINANCE II LTD.
Administrative Agent and Lead Arranger          By: INVESCO SENIOR SECURED
                                                    MANAGEMENT, INC., as Sub-
By:                                                 Managing Agent
   ------------------------------------
   Name:                                    By:
   Title:                                      -------------------------------
                                               Name:
By:                                            Title:
   ------------------------------------
   Name:
   Title:                                   AMARA 2 FINANCE, LTD.
                                                By: INVESCO SENIOR SECURED
                                                    MANAGEMENT, INC., as
CITIBANK, N.A., as Documentation Agent              Sub-Adviser
and as a Lender
                                            By:
By:                                            -------------------------------
   ------------------------------------        Name:
   Name:                                       Title:
   Title:

                                            THE BANK OF NEW YORK
ARCHIMEDES FUNDING II, Ltd.
    By:  ING CAPITAL ADVISORS LLC, as       By:
         Collateral Manager                    -------------------------------
                                               Name:
By:                                            Title:
   ------------------------------------
   Name:
   Title:                                   BANK ONE, NA

                                            By:
CREDIT SUISSE FIRST BOSTON, as a               -------------------------------
Lender                                         Name:
                                               Title:
By:
   ------------------------------------
   Name:                                    BANQUE NATIONALE DE PARIS
   Title:
                                            By:
By:                                            -------------------------------
   ------------------------------------        Name:
   Name:                                       Title:
   Title:
                                            By:
                                               -------------------------------
                                               Name:
                                               Title:

<PAGE>

                                                                              8

BANQUE WORMS CAPITAL CORPORATION            CAPTIVA II FINANCE LTD.

By:                                         By:
   ------------------------------------        -------------------------------
   Name:                                       Name:
   Title:                                      Title:

By:
   ------------------------------------     CERES FINANCE LTD.
   Name:                                        By:  INVESCO SENIOR SECURED
   Title:                                            MANAGEMENT INC., as Sub-
                                                     Managing Agent

BATTERSON PARK CBO 1
    By:  GENERAL RE - NEW ENGLAND ASSET     By:
         MANAGEMENT, INC., as Collateral       -------------------------------
         Manager                               Name:
                                               Title:
By:
   ------------------------------------
   Name:                                    CREDIT LYONNAIS NEW YORK BRANCH
   Title:
                                            By:
                                               -------------------------------
THE CHASE MANHATTAN BANK                       Name:
                                               Title:
By:
   ------------------------------------
   Name:                                    CYPRESSTREE SENIOR FLOATING
   Title:                                   RATE FUND
                                                By:  CYPRESSTREE INVESTMENT
                                                     MANAGEMENT COMPANY, INC.,
CHAIO TUNG BANK CO., NEW YORK AGENCY                 as Portfolio Manager

By:                                         By:
   ------------------------------------        -------------------------------
   Name:                                       Name:
   Title:                                      Title:

CREDIT AGRICOLE INDOSUEZ

By:
   ------------------------------------
   Name:
   Title:

<PAGE>

                                                                              9

CYPRESSTREE INVESTMENT                      EATON VANCE CDO III LTD.
PARTNERS I, LTD.                                By:  EATON VANCE MANAGEMENT,
    BY:  CYPRESSTREE INVESTMENT                      as Investment Advisor
         MANAGEMENT COMPANY, INC.,
         as Portfolio Manager               By:
                                               -------------------------------
By:                                            Name:
   -------------------------------             Title:
   Name:
   Title:
                                            EATON VANCE INST. SENIOR LOAN
                                            FUND
CYPRESSTREE INVESTMENT                          By:  EATON VANCE MANAGEMENT,
PARTNERS II, LTD.                                    as Investment Advisor
    BY:  CYPRESSTREE INVESTMENT
         MANAGEMENT COMPANY, INC.,          By:
         as Portfolio Manager                  -------------------------------
                                               Name:
By:                                            Title:
   -------------------------------
   Name:
   Title:                                   EATON VANCE SENIOR INCOME
                                            TRUST
                                                By:  EATON VANCE MANAGEMENT,
DEUTSCHE BANK AG NEW YORK                            as Investment Advisor
BRANCH AND/OR CAYMAN ISLANDS
BRANCH                                      By:
                                               -------------------------------
By:                                            Name:
   -------------------------------             Title:
   Name:
   Title:
                                            ERSTE BANK
By:
   -------------------------------          By:
   Name:                                       -------------------------------
   Title:                                      Name:
                                               Title:

                                            By:
                                               -------------------------------
                                               Name:
                                               Title::

                                            FIRST UNION NATIONAL BANK

                                            By:
                                               -------------------------------
                                               Name:
                                               Title:

<PAGE>

                                                                             10

GALAXY CLO 1999-1, LTD.                     KATONAH I LTD.

By:                                         By:
   -------------------------------             -------------------------------
   Name:                                       Name:
   Title:                                      Title:

GENERAL ELECTRIC CAPITAL                    KEYBANK NATIONAL ASSOCIATION
CORPORATION
                                            By:
By:                                            -------------------------------
   -------------------------------             Name:
   Name:                                       Title:
   Title:

                                            KZH CYPRESSTREE-1 LLC
GRAYSTON & CO.
                                            By:
By:                                            -------------------------------
   -------------------------------             Name:
   Name:                                       Title:
   Title:

                                            KZH ING-2 LLC
GRAYSTON CLO 2001-01 LTD.
                                            By:
By:                                            -------------------------------
   -------------------------------             Name:
   Name:                                       Title:
   Title:

                                            KZH ING-3 LLC
THE INDUSTRIAL BANK OF JAPAN,
LIMITED, NEW YORK BRANCH                    By:
                                               -------------------------------
By:                                            Name:
   -------------------------------             Title:
   Name:
   Title:
                                            KZH SOLEIL 2 LLC

                                            By:
                                               -------------------------------
                                               Name:
                                               Title:
                                                     -------------------------
                                                Title:

<PAGE>

                                                                             11

KZH WATERSIDE LLC                           OXFORD STRATEGIC INCOME FUND
                                                By:  EATON VANCE MANAGEMENT,
By:                                                  as Investment Advisor
   -------------------------------
   Name:                                    By:
   Title:                                      -------------------------------
                                               Name:
                                               Title:
MERITA BANK Plc

By:                                         SENIOR DEBT PORTFOLIO
   -------------------------------              By:  BOSTON MANAGEMENT AND
   Name:                                             RESEARCH, as Investment
   Title:                                            Advisor

By:                                         By:
   -------------------------------             -------------------------------
   Name:                                       Name:
   Title:                                      Title:

METROPOLITAN LIFE INSURANCE                 SOCIETE GENERALE
COMPANY
                                            By:
By:                                            -------------------------------
   -------------------------------             Name:
   Name:                                       Title:
   Title:

                                            STRATA FUNDING, LTD.
MORGAN GUARANTY TRUST                           By: INVESCO SENIOR SECURED
COMPANY OF NEW YORK                                 MANAGEMENT, INC., as Sub-
                                                    Managing Agent
By:
   -------------------------------          By:
   Name:                                       -------------------------------
   Title:                                      Name:
                                               Title:

NORTH AMERICAN SENIOR
FLOATING RATE FUND                          UNION BANK OF CALIFORNIA, N.A.
    BY:  CYPRESSTREE INVESTMENT
         MANAGEMENT COMPANY, INC.,          By:
         as Portfolio Manager                  -------------------------------
                                               Name:
By:                                            Title:
   -------------------------------
   Name:
   Title:

<PAGE>

                                                                             12

VAN KAMPEN SENIOR FLOATING
RATE FUND
    BY: VAN KAMPAN INVESTMENT
        ADVISORY CORP.

By:
   -------------------------------
   Name:
   Title:

WACHOVIA BANK, N.A.

By:
   -------------------------------
   Name:
   Title:

<PAGE>

         The undersigned Subsidiary Guarantors do hereby consent and agree to
the execution and delivery of this Amendment:

                                      HEXCEL INTERNATIONAL
                                      HEXCEL OMEGA CORPORATION
                                      HEXCEL BETA CORP.
                                      CLARK-SCHWEBEL HOLDING CORP.
                                      CLARK-SCHWEBEL CORPORATION
                                      CS TECH-FAB HOLDING, INC.

                                      By:
                                         ---------------------------------
                                         Name:
                                         Title:

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