Master's Competition Gloves feature Injected Molded Foam, which distributes shock more efficiently than traditional padding techniques. Injected Molded Foam insures an anatomically correct fit because it is actually created from a mold of a fist. This single sheet of 2-1/2 inch thick foam is more durable and absorbent than layered-foam padding systems. The gloves are 16 oz and made entirely of high-grade leather with an attached thumb. They also have a hook-and-loop closure and a nylon, pull-over sleeve for added safety.