POWER OF ATTORNEY

      KNOW ALL BY THESE PRESENTS, that the undersigned hereby makes, constitutes
and appoints James M. Kilts, David J. West and Brian K. Ratzan, acting singly
and with full power of substitution or revocation, the undersigned's true and
lawful attorneys-in-fact, with full power and authority as hereinafter described
on behalf of and in the name, place and stead of the undersigned to:

      (i)  execute for and on behalf of the undersigned, in the undersigned's
           capacity as a director, director nominee, officer or beneficial owner
           of shares of common stock of Conyers Park II Acquisition Corp., a
           Delaware corporation (the "Company"), any Schedule 13D or Schedule
           13G, and any amendments, supplements or exhibits thereto (including
           any joint filing agreements) required to be filed by the undersigned
           under Section 13 of the Securities Exchange Act of 1934, as amended,
           and the rules promulgated thereunder (the "Exchange Act"), and any
           Forms 3, 4, and 5 and any amendments, supplements or exhibits thereto
           required to be filed by the undersigned under Section 16(a) of the
           Exchange Act;

      (ii)  do and perform any and all acts for and on behalf of the undersigned
            which may be necessary or desirable to complete and execute any such
            schedules or forms and timely file such forms with the United States
            Securities and Exchange Commission and any applicable stock
            exchange; and

      (iii) take any other action of any type whatsoever in connection with the
            foregoing which, in the opinion of such attorneys-in-fact, may be of
            benefit to, in the best interest of, or legally required by, the
            undersigned, it being understood that the documents executed by such
            attorneys-in-fact on behalf of the undersigned pursuant to this
            Power of Attorney shall be in such form and shall contain such terms
            and conditions as such attorneys-in-fact may approve in such
            attorneys-in-fact's discretion.

      The undersigned hereby grants to such attorneys-in-fact full power and
authority to do and perform any and every act and thing whatsoever requisite,
necessary, or proper to be done in the exercise of any of the rights and powers
herein granted, as fully to all intents and purposes as the undersigned might or
could do if personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorneys-in-fact's substitute or
substitutes, shall lawfully do or cause to be done by virtue of this power of
attorney and the rights and powers herein granted. The undersigned acknowledges
that the foregoing attorneys-in- fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company assuming, any
of the undersigned's responsibilities to comply with, or any liability for the
failure to comply with, Section 13 and/or Section 16 of the Exchange Act.

      This Power of Attorney shall remain in full force and effect until the
undersigned is no longer required to file reports or schedules under Section 13
or Section 16 of the Exchange Act with respect to the Company, unless earlier
revoked by the undersigned in a signed writing delivered to the foregoing
attorneys-in-fact.

                                 *  *  *  *  *


      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to
be executed as of this 17th day of July, 2019.


                                      By: /s/ Andrea Wong
                                          -------------------------------------
                                      Name: Andrea Wong
                                      Title: Director