Special modified EVA foam forearm and triceps for lightweight form-fitting protection. FitLite elbow technology. F.I.T. elbow construction for a custom fit. F.A.V. system for air circulation. Griptonite on the elbow, forearm and triceps lock the guard in place. Play Dry liner controls moisture. Form fitting and vent mesh Lycra sleeves. Ergonomic and anatomical elbow cap design. Memory foam elbow and arm for the ultimate in fit and feel.