O.S.S. Capital Management LP

     598 Madison Avenue
     New York, NY 10022-1603
     Tel. (212) 756-8700
     Fax. (212) 756-8701


                                                           July 25, 2007



Mr. David Berges
Chairman and Chief Executive Officer
Hexcel Corporation
Two Stamford Plaza
281 Tresser Boulevard
Stamford, CT  06901



Dear David:

On May 10,  2007,  at your  invitation,  we  presented  our analysis of Hexcel's
operating  performance  to the Board of  Directors.  At the  conclusion  of that
meeting, you informed us that we could expect to hear from you in the near term.
Yet, two and one-half months have transpired and we have heard nothing from you.
We are  frustrated  by the lack of a response to our concerns and more  acutely,
Hexcel's continued underperformance.

Throughout our tenure as shareholders,  management has communicated  that Hexcel
is a margin  expansion story.  However,  despite sales increasing 5.8% year over
year in the second  quarter,  Hexcel's gross margin declined from 24.6% of sales
to 24.3% of sales during the same timeframe.

We are frustrated by management's  continued  reference to "one-off' items as an
excuse for the company's  underperformance.  We believe the problem at Hexcel is
management's  inability  to  efficiently  manage the asset base.  The  company's
margins are too low and the  promised  margin  expansion  story is being  wasted
away.

In summary,  we re-iterate that (1) Hexcel is  under-earning,  (2) management is
not addressing this shortfall in earnings, and (3) shareholders are suffering as
a result.  We think that Hexcel would benefit from an independent  review of its
prospects and strategy with a view toward taking action to maximize  shareholder
value.  To  accomplish  this,  we  request  that the Board form a  committee  of
independent  directors to retain an independent  investment bank that can advise
as to how shareholder value can best be maximized.

We respectfully  request that the Board respond to our analysis and our concerns
in an expedited fashion.



Sincerely,


Oscar S. Schafer                Andrew J. Goffe               Peter J. Grondin





cc:   Joel S. Beckman
      H. Arthur Bellows
      Lynn Brubaker
      Jeffrey C. Campbell
      Sandra L. Derickson
      W. Kim Foster
      Jeffrey A. Graves
      David C. Hurley
      David L. Pugh