Piranha Gear Martial Arts Patch (White & Red) Free shipping (not the "most important" thing, but a dang nice anyway, no?) Our SUPER return policy allows you to return it with NO RESTOCKING fees! We first intended these for people that practice Muay Thai, Kickboxing, MMA or UFC mixed martial arts... ...but they work just as well for Karate, Krav Maga, BJJ, Judo and followers of any combat arts. Fits nicely on the back or sleeve of your uniform.