I make these to put muzzleloader ammo in. This one is for .45 cal, but they can be made for any size. We put these in our shooting bags, but you can add a wing at the neck for a thong to tie to your belt. Cut out the two pieces, sew them up, soak them for 15-25 seconds then pack with unpopped popcorn or sand. Empty it out and let dry. It takes longer to dry than it takes to make.