Kickboxing, Karate, MMA, K1, Muay Thai.... In each of these disciplines, the legs are used for strikes. They are the most dangerous weapon in any fighter's arsenal. Yet it is the legs that are most susceptible to injury. Perhaps every fighter dreams of having a shinbone of steel. But they're only dreams... That's why fighters should wear shin guards. And protection is needed not only in combat, but also in training.