<PAGE>
 
This document is important and requires your immediate attention. If you are in
  doubt as to how to deal with it, you should consult your investment dealer,
                           lawyer or other advisor.

                              NOTICE OF EXTENSION
                              
                                      by

                              DT ACQUISITION INC.

                               in respect of its

                              OFFERS TO PURCHASE

       all of the Common Shares and all of the First Preferred Shares of

                             DOMINION TEXTILE INC.

--------------------------------------------------------------------------------
on the basis of a price of Cdn. $14.50 cash per Common Share and a price of Cdn.
                    $112.00 cash per First Preferred Share
--------------------------------------------------------------------------------

     On November 28, 1997, DT Acquisition Inc. (the "Offeror") extended its
Offers by notice delivered to the Depositary.

     The Offers, as extended, are open for acceptance until 12:00 midnight
(Toronto time) on Monday, December 15, 1997 (the "Expiry Time"), unless
withdrawn or extended.

     Holders of Common Shares who wish to accept the Common Share Offer must
properly complete and execute the Letter of Transmittal (printed on blue paper)
that accompanied the Common Share Offer and holders of First Preferred Shares
who wish to accept the Preferred Share Offer must properly complete and execute
the Letter of Transmittal (printed on green paper) that accompanied the
Preferred Share Offer or, in each case, a manually executed facsimile thereof
and deposit it, together with certificates representing their Shares, in
accordance with the instructions in the relevant Letter of Transmittal at any of
the offices of the Depositary specified in such Letter of Transmittal, so as to
arrive there not later than the Expiry Time. Alternatively, Shareholders
tendering Common Shares may follow the procedure for guaranteed delivery
described in Section 3 of the Original Offers, "Manner of Acceptance - Procedure
for Guaranteed Delivery", using the Notice of Guaranteed Delivery (printed on
yellow paper) that accompanied the Common Share Offer. 

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

                      The Dealer Managers for the Offers:

         CIBC Wood Gundy Securities Inc.       Chase Securities Inc.
                   in Canada                   in the United States



December 2, 1997

     Questions and requests for assistance may be directed to the Dealer
Managers or the Depositary, and additional copies of this Notice, the Offers and
Circular, the Letters of Transmittal and the Notice of Guaranteed Delivery may
be obtained without charge on request from the Dealer Managers or the Depositary
at their respective offices shown on the last page of this Notice.
<PAGE>
 
     The Offers are made for the securities of a Canadian issuer and while the
Offers are subject to Canadian disclosure requirements, investors should be
aware that those requirements are different from those of the United States.
Financial statements included in the Offers and Circular, as varied by this
Notice, regarding Dominion Textile, if any, have been prepared in accordance
with Canadian generally accepted accounting principles and thus may not be
comparable to financial statements of United States companies.

     The enforcement by investors of civil liabilities under the United States
federal securities laws may be affected adversely by the fact that the Offeror
is incorporated and located in Canada, that some or all of its officers and
directors are residents of Canada, that the Canadian Dealer Manager is a
resident of Canada, and that all or a substantial portion of the assets of the
Offeror and such persons are located outside the United States.

     You should be aware that the Offeror or its affiliates, directly or
indirectly, may bid for or make purchases of Dominion Textile's securities
subject to the Offers, or of Dominion Textile's related securities, during the
period of the Offers, as permitted by applicable Canadian laws, provincial laws
and regulations. 

     All currency amounts expressed herein and in the Offers and the Circular
are in Canadian dollars unless otherwise indicated.

     This document does not constitute an offer or a solicitation to any person
in any jurisdiction in which such offer or solicitation is unlawful. The Offers
are not being made to, nor will deposits be accepted from or on behalf of,
Shareholders in any jurisdiction in which the making or acceptance of the Offers
would not be in compliance with the laws of such jurisdiction. However, the
Offeror may, in its sole judgement, take such action as it may deem necessary to
extend either of the Offers to Shareholders in such jurisdiction.

                                       2
<PAGE>
 
                              NOTICE OF EXTENSION

TO:  THE HOLDERS OF COMMON SHARES AND THE HOLDERS OF FIRST PREFERRED
     SHARES OF DOMINION TEXTILE INC.

     By notice to the Depositary given on November 28, 1997, DT Acquisition Inc.
(the "Offeror") extended its offers dated October 29, 1997, as varied on
November 18, 1997, pursuant to which the Offeror is offering to purchase all of
the outstanding common shares (the "Common Shares") of Dominion Textile Inc.
("Dominion Textile") and all of the outstanding first preferred shares (the
"First Preferred Shares") of Dominion Textile. The offers dated October 29,
1997, as varied on November 18, 1997, are referred to as the "Original
Offers". The circular which accompanied the Original Offers is referred to as
the "Circular". The Original Offers and the Circular, all as extended by this
Notice, are referred to as the "Offers". 

     Except as otherwise set forth in this Notice, the information, terms and
conditions contained in the Original Offers and Circular continue to be
applicable in all respects and this Notice should be read in conjunction
therewith. Unless the context otherwise requires, terms denoted by initial
capital letters and not defined herein have the respective meanings set forth in
the Original Offers and the Circular.

1.   EXTENSION OF THE OFFERS

     The Offeror has amended the Original Offers by extending the time during
which each Offer is open for acceptance to 12:00 midnight (Toronto time) on
Monday, December 15, 1997 unless the particular Offer is withdrawn or further
extended. Accordingly, the Expiry Time shall be 12:00 midnight (Toronto time) on
Monday, December 15, 1997.

2.   RECENT DEVELOPMENTS

Deposits to the Offers

     Each of the Offers is subject to a condition (the "Minimum Condition")
that at least 66 2/3% of the Common Shares and 66 2/3% of the First
Preferred Shares, as the case may be, held by the public be validly deposited
and not withdrawn prior to the Expiry Time.

     As at 12:00 midnight (Toronto time) on Friday, November 28, 1997,
approximately 35,200,000 Common Shares representing approximately 96% of the
outstanding Common Shares held by the public were tendered to the Common Share
Offer. As at 12:00 midnight (Toronto time) on Friday, November 28, 1997, 128
First Preferred Shares representing approximately 35% of the First Preferred
Shares were tendered to the Preferred Share Offer. Accordingly, the Minimum
Condition was satisfied with respect to the Common Share Offer and the Minimum
Condition was not satisfied with respect to the Preferred Share Offer.

Investment Canada Approval

     The Offers are subject to a condition that the Minister of Industry shall
have allowed the implementation of the proposed transaction and the Purchase
Agreement Transaction pursuant to the provisions of the Investment Canada Act.
The Offeror and Polymer are currently in discussions with representatives of
Industry Canada in order to provide assurances that the acquisition of Dominion
Textile will be of net benefit to Canada. Polymer and the Offeror are confident
that the approval of the Minister of Industry will be granted. The Offeror is
using its best efforts to obtain such approval as soon as possible.

3.   WITHDRAWAL OF DEPOSITED SHARES

     As a result of the extension of the Offers, Section 8 of the Original
Offers, "Withdrawal of Deposited Shares" is hereby amended to provide that
Shareholders will have the right to withdraw Shares at any time prior to the
take up by the Offeror of any Shares tendered to the Offers.

                                       3
<PAGE>
 
4.   VARIATION OF THE OFFERS

     The Offeror reserves the right, in its sole discretion, at any time and
from time to time while the Offers are open for acceptance, to extend the Expiry
Time of the Common Share Offer and/or the Preferred Share Offer or to further
vary the terms of either Offer by giving oral notice (to be confirmed in
writing) or written notice of such extension or variation to the Depositary at
its principal office in Toronto, and by causing the Depositary to provide as
soon as practicable thereafter a copy of such notice in the manner set forth in
Section 10 of the Original Offers, "Notices and Delivery", to all holders of
Common Shares or Preferred Shares, as applicable, whose Shares have not been
taken up prior to the extension or variation. The Offeror shall, as soon as
possible after giving notice of an extension or variation to the Depositary,
make a public announcement of the extension or variation and provide a copy of
the notice thereof to the TSE and the ME. Any notice of extension or variation
will be deemed to have been given and to be effective on the day on which and at
the time at which it is delivered or otherwise communicated to the Depositary at
its principal office in Toronto.

     During any such extension or in the event of any variation, all Shares
previously deposited and not taken up or withdrawn will remain subject to the
Offers. An extension of the Expiry Time or a variation of the Offers does not
constitute a waiver by the Offeror of its rights under Section 4 of the Offers,
"Conditions of the Offers" (as amended hereby).

5.   AMENDMENTS TO OFFERS AND LETTERS OF TRANSMITTAL

     The Original Offers, the Circular, the Definitions, the Letters of
Transmittal and the Notice of Guaranteed Delivery shall be amended mutatis
mutandis to reflect the amendments made by this Notice.

6.   STATUTORY RIGHTS

     Securities legislation in certain of the provinces and territories of
Canada provides Shareholders with, in addition to any other rights they may have
at law, rights of rescission or to damages, or both, if there is a
misrepresentation in a circular or a notice that is required to be delivered to
Shareholders. However, such rights must be exercised within prescribed time
limits. Shareholders should refer to the applicable provisions of the securities
legislation of their province or territory for particulars of those rights or
consult with a lawyer.

                                       4
<PAGE>
 
                           APPROVAL AND CERTIFICATE

     The contents of the Original Offers, the Circular and this Notice of
Extension have been approved, and the sending, communication or delivery thereof
to the Shareholders of Dominion Textile has been authorized by, the board of
directors of the Offeror. The Offers contain no untrue statement of a material
fact and do not omit to state a material fact that is required to be stated or
that is necessary to make a statement not misleading in the light of the
circumstances in which it was made. In addition, the Offers do not contain any
misrepresentation likely to affect the value or the market price of the Common
Shares and the First Preferred Shares which are the subject of the Offers.

DATED: December 2, 1997
<TABLE> 
<CAPTION> 
<S>                                      <C> 
           (Signed) Jerry Zucker                   (Signed) James G. Boyd
           Chairman, President and       Executive Vice-President, Chief Financial Officer,
           Chief Executive Officer                 Treasurer and Secretary

                      On behalf of the Board of Directors


           (Signed) Peter Bourgeois                (Signed) Warren Turnbull
                    Director                                Director
</TABLE> 
                                       5
<PAGE>
 
               The Depositary, Montreal Trust Company of Canada

                                    By Mail

                            Stock Transfer Services
                             151 Front Street West
                                   8th Floor
                               Toronto, Ontario
                                    M5J 2N1
                            Attn: Re-org Department
                              Tel: (800) 639-0802
                              Fax: (416) 981-9645

                                    By Hand

<TABLE> 
<CAPTION> 
<S>                       <C>                        <C>                         <C> 
Stock Transfer Services    Stock Transfer Services    Stock Transfer Services    Stock Transfer Services
   Western Gas Tower        Place Montreal Trust      151 Front Street West            4th Floor
 530 - 8th Avenue S.W.    1800 McGill College Ave.          8th Floor              510 Burrard Street
   Calgary, Alberta          Montreal, Quebec           Toronto, Ontario            Vancouver, B.C.
       T2P 3S8                    H3A 3K9                    M5J 2N1                    V6C 3B9
Attn: Re-org Department                              Attn: Re-org Department     Attn: Re-org Department
   Tel: (403) 267-6555      Tel: (514) 982-7535        Tel: (800) 639-0802        Tel: (888) 661-0222
   Fax: (403) 266-1490      Fax: (514) 982-7580        Fax: (416) 981-9645        Fax: (604) 661-9480
</TABLE> 

   Office of CIBC Wood Gundy Securities Inc., the Dealer Manager, In Canada

                                   In Canada
<TABLE> 
<CAPTION> 
        Toronto Office                                    Montreal Office
<S>                                                <C> 
   BCE Place, P.O. Box 500                                  Suite 3050
       161 Bay Street                              600 ouest Boul de Maisonneuve
      Toronto, Ontario                                    Montreal, Quebec
          M5J 2S8                                             H3A 3J2

     Tel: (416) 594-7000                                Tel: (514) 847-6300
     Fax: (416) 594-7225                                Fax: (514) 847-6480
</TABLE> 

   Office of Chase Securities Inc., the Dealer Manager in the United States

                                270 Park Avenue
                              New York, New York
                                     10017
                              Tel: (212) 270-4216
                              Fax: (212) 270-2131

Any questions and requests for assistance may be directed by Shareholders to the
 Dealer Managers and the Depositary at their respective telephone numbers and
                           locations set out above.

                                       6