A few of us here are using canvas bags. Crispy made a neat one and Daryl is using a commercial canvas bag. I made mine - a double pouch, after reading TC Albert's excellent article on them, in Muzzleloader mag a few months ago. I use mine for my smoothbore bag, and like it a lot. It's lined with heavy denim which adds greatly to the strength and fullness of the pouch. The button is bison horn.