IMF Tech™ is an innovative, Injection Molded Foam padding system. We start by constructing a mold based on the shape of a real fist with 2.5" of protection over the knuckles and tapering towards the wrist and finger tips. The mold is then injected with a specific formula of liquified foam. After it sets, the foam is removed from the mold resulting in a single layer of thick durable foam padding pre-curved in the shape of a fist. We feel that it's the most advanced padding system you'll find, ideal for extended training sessions, with a premium on comfort and protection.