Pro Shin Guards from Contender Fight Sports boast a double layer of protection to optimize MMA training sessions. Extra level of thick foam padding runs down the length of the shin for safety of the legs and the training partner Two hook & loop straps on the backside ensure the guard does not slip Elastic strap on the instep secures the foot padding Neoprene at the ankle allows full range of movement without leaving it unprotected Synthetic leather construction allows high impact training without sacrificing long lasting performance Regular (lighter than 165 lbs.), Large (165 lbs. to 200 lbs.) or XL (heavier than 200 lbs.)