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                                                                     EXHIBIT 3.1


                 CERTIFICATE OF DETERMINATION OF PREFERENCES

                                       OF

                  SERIES A JUNIOR PARTICIPATING PREFERRED STOCK

                                       OF

                       PACIFIC SUNWEAR OF CALIFORNIA, INC.

                     (Pursuant to Section 401 of the General
                   Corporation Law of the State of California)

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        The undersigned, Greg H. Weaver and Carl W. Womack, hereby certify that
(1) Greg H. Weaver is the duly elected and acting Chairman of the Board and
Chief Executive Officer and Carl W. Womack is the duly elected and acting Sr.
Vice President, Chief Financial Officer and Secretary of Pacific Sunwear of
California, Inc., a California corporation (hereinafter called the
"Corporation"), and (2) under authority given by the Corporation's Third Amended
and Restated Articles of Incorporation, as amended (the "Restated Articles"),
the Board of Directors has duly adopted the following recitals and resolutions:

        WHEREAS, the Restated Articles provide for a class of shares known as
Preferred Stock, issuable from time to time in one or more series;

        WHEREAS, the Board of Directors of the Corporation is authorized to
determine or alter the rights, preferences, privileges, and restrictions granted
to or imposed on any wholly unissued series of Preferred Stock, to fix the
number of shares constituting any such series, and to determine the designation
thereof, or any of them;

        WHEREAS, the Restated Articles provide that the Corporation is
authorized to issue Five Million (5,000,000) shares of Preferred Stock; and

        WHEREAS, the Corporation has not issued any shares of such Preferred
Stock and the Board of Directors of the Corporation desires to determine the
rights, preferences, privileges, and restrictions relating to this initial
series of Preferred Stock and the number of shares constituting and the
designation of said series;

        NOW, THEREFORE, BE IT RESOLVED, that the Board of Directors hereby
determines the designation of, number of shares constituting, and the rights,
preferences, privileges, and restrictions relating to said series of Preferred
Stock as follows:

        Section 1. DESIGNATION AND AMOUNT. The shares of such series shall be
designated as "Series A Junior Participating Preferred Stock" (the "Series A
Preferred Stock") and the number of shares constituting the Series A Preferred
Stock shall be 1,012,500. Such


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number of shares may be increased or decreased by resolution of the Board of
Directors; provided, that no decrease shall reduce the number of shares of
Series A Preferred Stock to a number less than the number of shares then
outstanding plus the number of shares reserved for issuance upon the exercise of
outstanding options, rights or warrants or upon the conversion of any
outstanding securities issued by the Corporation convertible into Series A
Preferred Stock.

        Section 2. DIVIDENDS AND DISTRIBUTIONS.

                   (A) Subject to the rights of the holders of any shares of any
        series of Preferred Stock (or any similar stock) ranking prior and
        superior to the Series A Preferred Stock with respect to dividends, the
        holders of shares of Series A Preferred Stock, in preference to the
        holders of shares of Common Stock, par value $0.01 per share (the
        "Common Shares"), of the Corporation, and of any other junior stock,
        shall be entitled to receive, when, as and if declared by the Board of
        Directors out of funds legally available for the purpose, quarterly
        dividends payable in cash on the first day of March, June, September and
        December in each year (each such date being referred to herein as a
        "Quarterly Dividend Payment Date"), commencing on the first Quarterly
        Dividend Payment Date after the first issuance of a share or fraction of
        a share of Series A Preferred Stock, in an amount per share (rounded to
        the nearest cent) equal to the greater of (a) $1 or (b) subject to the
        provision for adjustment hereinafter set forth, 100 times the aggregate
        per share amount of all cash dividends, and 100 times the aggregate per
        share amount (payable in kind) of all non-cash dividends or other
        distributions, other than a dividend payable in Common Shares or a
        subdivision of the outstanding Common Shares (by reclassification or
        otherwise), declared on the Common Shares since the immediately
        preceding Quarterly Dividend Payment Date or, with respect to the first
        Quarterly Dividend Payment Date, since the first issuance of any share
        or fraction of a share of Series A Preferred Stock. In the event the
        Corporation shall at any time declare or pay any dividend on the Common
        Shares payable in Common Shares, or effect a subdivision or combination
        or consolidation of the outstanding Common Shares (by reclassification
        or otherwise than by payment of a dividend in Common Shares) into a
        greater or lesser number of Common Shares, then in each such case the
        amount to which holders of shares of Series A Preferred Stock were
        entitled immediately prior to such event under clause (b) of the
        preceding sentence shall be adjusted by multiplying such amount by a
        fraction, the numerator of which is the number of Common Shares
        outstanding immediately after such event and the denominator of which is
        the number of Common Shares that were outstanding immediately prior to
        such event.

                   (B) The Corporation shall declare a dividend or distribution
        on the Series A Preferred Stock as provided in paragraph (A) of this
        Section immediately after it declares a dividend or distribution on the
        Common Shares (other than a dividend payable in Common Shares); provided
        that, in the event no dividend or distribution shall have been declared
        on the Common Shares during the period between any Quarterly Dividend
        Payment Date and the next subsequent Quarterly Dividend Payment Date, a
        dividend of $1 per share on the Series A Preferred Stock shall
        nevertheless be payable on such subsequent Quarterly Dividend Payment
        Date.


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                   (C) Dividends shall begin to accrue and be cumulative on
        outstanding shares of Series A Preferred Stock from the Quarterly
        Dividend Payment Date next preceding the date of issue of such shares,
        unless the date of issue of such shares is prior to the record date for
        the first Quarterly Dividend Payment Date, in which case dividends on
        such shares shall begin to accrue from the date of issue of such shares,
        or unless the date of issue is a Quarterly Dividend Payment Date or is a
        date after the record date for the determination of holders of shares of
        Series A Preferred Stock entitled to receive a quarterly dividend and
        before such Quarterly Dividend Payment Date, in either of which events
        such dividends shall begin to accrue and be cumulative from such
        Quarterly Dividend Payment Date. Accrued but unpaid dividends shall not
        bear interest. Dividends paid on the shares of Series A Preferred Stock
        in an amount less than the total amount of such dividends at the time
        accrued and payable on such shares shall be allocated pro rata on a
        share-by-share basis among all such shares at the time outstanding. The
        Board of Directors may fix a record date for the determination of
        holders of shares of Series A Preferred Stock entitled to receive
        payment of a dividend or distribution declared thereon, which record
        date shall be not more than 60 days prior to the date fixed for the
        payment thereof.

        Section 3. VOTING RIGHTS. The holders of shares of Series A Preferred 
Stock shall have the following voting rights:

                   (A) Subject to the provision for adjustment hereinafter set
        forth, each share of Series A Preferred Stock shall entitle the holder
        thereof to 100 votes on all matters submitted to a vote of the
        shareholders of the Corporation. In the event the Corporation shall at
        any time declare or pay any dividend on the Common Shares payable in
        Common Shares, or effect a subdivision or combination or consolidation
        of the outstanding Common Shares (by reclassification or otherwise than
        by payment of a dividend in Common Shares) into a greater or lesser
        number of Common Shares, then in each such case the number of votes per
        share to which holders of shares of Series A Preferred Stock were
        entitled immediately prior to such event shall be adjusted by
        multiplying such number by a fraction, the numerator of which is the
        number of Common Shares outstanding immediately after such event and the
        denominator of which is the number of Common Shares that were
        outstanding immediately prior to such event.

                   (B) Except as otherwise provided herein, in any other
        Certificate of Determination creating a series of Preferred Stock or any
        similar stock, or by law, the holders of shares of Series A Preferred
        Stock and the holders of Common Shares and any other capital stock of
        the Corporation having general voting rights shall vote together as one
        class on all matters submitted to a vote of shareholders of the
        Corporation.

                   (C) Except as set forth herein, or as otherwise provided by
        law, holders of Series A Preferred Stock shall have no special voting
        rights and their consent shall not be required (except to the extent
        they are entitled to vote with holders of Common Shares as set forth
        herein) for taking any corporate action.


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        Section 4. CERTAIN RESTRICTIONS.

                   (A) Whenever quarterly dividends or other dividends or
        distributions payable on the Series A Preferred Stock as provided in
        Section 2 are in arrears, thereafter and until all accrued and unpaid
        dividends and distributions, whether or not declared, on shares of
        Series A Preferred Stock outstanding shall have been paid in full, the
        Corporation shall not:

                            (i) declare or pay dividends, or make any other
               distributions, on any shares of stock ranking junior (either as
               to dividends or upon liquidation, dissolution or winding up) to
               the Series A Preferred Stock;

                            (ii) declare or pay dividends, or make any other
               distributions, on any shares of stock ranking on a parity (either
               as to dividends or upon liquidation, dissolution or winding up)
               with the Series A Preferred Stock, except dividends paid ratably
               on the Series A Preferred Stock and all such parity stock on
               which dividends are payable or in arrears in proportion to the
               total amounts to which the holders of all such shares are then
               entitled;

                            (iii) redeem or purchase or otherwise acquire for
               consideration shares of any stock ranking junior (either as to
               dividends or upon liquidation, dissolution or winding up) to the
               Series A Preferred Stock, provided that the Corporation may at
               any time redeem, purchase or otherwise acquire shares of any such
               junior stock in exchange for shares of any stock of the
               Corporation ranking junior (either as to dividends or upon
               dissolution, liquidation or winding up) to the Series A Preferred
               Stock; or

                            (iv) redeem or purchase or otherwise acquire for
               consideration any shares of Series A Preferred Stock, or any
               shares of stock ranking on a parity with the Series A Preferred
               Stock, except in accordance with a purchase offer made in writing
               or by publication (as determined by the Board of Directors) to
               all holders of such shares upon such terms as the Board of
               Directors, after consideration of the respective annual dividend
               rates and other relative rights and preferences of the respective
               series and classes, shall determine in good faith will result in
               fair and equitable treatment among the respective series or
               classes.

                   (B) The Corporation shall not permit any subsidiary of the
        Corporation to purchase or otherwise acquire for consideration any
        shares of stock of the Corporation unless the Corporation could, under
        paragraph (A) of this Section 4, purchase or otherwise acquire such
        shares at such time and in such manner.

        Section 5. REACQUIRED SHARES. Any shares of Series A Preferred Stock
purchased or otherwise acquired by the Corporation in any manner whatsoever
shall be retired and cancelled promptly after the acquisition thereof. All such
shares shall upon their cancellation become authorized but unissued shares of
Preferred Stock and may be reissued as part of a new series of Preferred Stock
subject to the conditions and restrictions on issuance set forth herein, in the
Restated Articles of Incorporation, or in any other Certificate of Determination
creating a series of Preferred Stock or any similar stock or as otherwise
required by law.


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        Section 6. LIQUIDATION, DISSOLUTION OR WINDING UP. Upon any liquidation,
dissolution or winding up of the Corporation, no distribution shall be made (1)
to the holders of shares of stock ranking junior (either as to dividends or upon
liquidation, dissolution or winding up) to the Series A Preferred Stock unless,
prior thereto, the holders of shares of Series A Preferred Stock shall have
received an aggregate amount per share, subject to the provision for adjustment
hereinafter set forth, equal to 100 times the aggregate amount to be distributed
per share to holders of Common Shares, plus an amount equal to accrued and
unpaid dividends and distributions thereon, whether or not declared, to the date
of such payment, provided that the holders of shares of Series A Preferred Stock
shall be entitled to receive at least a preferential liquidation payment of $100
per share plus an amount equal to accrued and unpaid dividends and distributions
thereon, whether or not declared, to the date of such payment, or (2) to the
holders of shares of stock ranking on a parity (either as to dividends or upon
liquidation, dissolution or winding up) with the Series A Preferred Stock,
except distributions made ratably on the Series A Preferred Stock and all such
parity stock in proportion to the total amounts to which the holders of all such
shares are entitled upon such liquidation, dissolution or winding up. In the
event the Corporation shall at any time declare or pay any dividend on the
Common Shares payable in Common Shares, or effect a subdivision or combination
or consolidation of the outstanding Common Shares (by reclassification or
otherwise than by payment of a dividend in Common Shares) into a greater or
lesser number of Common Shares, then in each such case the aggregate amount to
which holders of shares of Series A Preferred Stock were entitled immediately
prior to such event under the proviso in clause (1) of the preceding sentence
shall be adjusted by multiplying such amount by a fraction the numerator of
which is the number of Common Shares outstanding immediately after such event
and the denominator of which is the number of Common Shares that were
outstanding immediately prior to such event.

        Section 7. CONSOLIDATION, MERGER, ETC. In case the Corporation shall
enter into any consolidation, merger, combination or other transaction in which
the Common Shares are exchanged for or changed into other stock or securities,
cash and/or any other property, then in any such case each share of Series A
Preferred Stock shall at the same time be similarly exchanged or changed into an
amount per share, subject to the provision for adjustment hereinafter set forth,
equal to 100 times the aggregate amount of stock, securities, cash and/or any
other property (payable in kind), as the case may be, into which or for which
each Common Share is changed or exchanged. In the event the Corporation shall at
any time declare or pay any dividend on the Common Shares payable in Common
Shares, or effect a subdivision or combination or consolidation of the
outstanding Common Shares (by reclassification or otherwise than by payment of a
dividend in Common Shares) into a greater or lesser number of Common Shares,
then in each such case the amount set forth in the preceding sentence with
respect to the exchange or change of shares of Series A Preferred Stock shall be
adjusted by multiplying such amount by a fraction, the numerator of which is the
number of Common Shares outstanding immediately after such event and the
denominator of which is the number of Common Shares that were outstanding
immediately prior to such event.


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        Section 8. NO REDEMPTION. The shares of Series A Preferred Stock shall
not be redeemable.

        Section 9. RANK. The Series A Preferred Stock shall rank, with respect
to the payment of dividends and the distribution of assets, junior to all other
series of the Corporation's Preferred Stock.

        Section 10. AMENDMENT. The Restated Articles of Incorporation of the
Corporation shall not be amended in any manner which would materially alter or
change the powers, preferences or special rights of the Series A Preferred Stock
so as to affect them adversely without the affirmative vote of the holders of at
least two-thirds of the outstanding shares of Series A Preferred Stock, voting
together as a single class.


                                   * * * * * *


        The number of shares constituting Series A Junior Participating
Preferred Stock is 1,012,500, none of which has been issued.


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        The undersigned Greg H. Weaver, the Chairman of the Board and Chief
Executive Officer, and Carl W. Womack, the Sr. Vice President, Chief Financial
Officer and Secretary, of Pacific Sunwear of California, Inc., each declares
under penalty of perjury under the laws of the California that the matters set
out in the foregoing Certificate are true of his own knowledge.

        Executed at Anaheim, California, on December 15, 1998.



                                          /s/ GREG H. WEAVER
                                          --------------------------------------
                                          Name: Greg H. Weaver
                                          Title: Chairman of the Board and
                                                 Chief Executive Officer


                                          /s/ CARL W. WOMACK
                                          --------------------------------------
                                          Name: Carl W. Womack
                                          Title: Sr. Vice President, Chief 
                                                 Financial Officer and Secretary



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