Generally, we do not have any to sell if you have misplaced yours but if you are willing to ship your bag to our repair facility, they may be able to find one for you.  Unfortunately, there is no guarantee that they can and it takes 4-6 weeks for our repair facility to process items once they receive them so it does take a little time to get that pack a brain!  Just contact customer service here by starting a ticket and they can facilitate the process!