I bought some lightweight nylon fabric and sewed it into a bag on my wife's sewing machine, then I hand-stitched the bag to my vest. I also bought some shell loops that velcro to an adhesive backed patch. I stitched the patch to the vest and now have shell loops. I would suggest replacing the adhesive velcro that came with the loops with non-adhesive from a fabric store though, it gummed up the needle I was using and made it very difficult to push it through the fabric. Thankfully it was a pretty small patch.