I use double capped rivets on my hybrids. BUT....... The flared rivets on the full kydex are also the points where you attach your hardware for wearing them. It let's the loops or clips become adjustable on the kydex. If you are making one for yourself, just figure out what you want and build the cant into it instead of making it adjustable. Adjustability sells well and in the long run is easier on the maker. Customization is what drives a lot of folks into making their own, or very small makers might work with it too.