You should check the actual back and edges of your canvas. Until the 1950's hemp was grown commercially in the us. I would prefer 6 MM Eva mould made from PU to be a prefect safety gloves. However, it has an overwhelming number of dog food products on the market. https://www.bbb.org/us/az/phoenix/profile/garage-doors/garage-door-grunts-1126-1000075538