Main Materials: Polyethylene plastic, Nylon straps, Biofoam padding · Perforated plastic shells for ventilation and impact resistance · High density foam padding for superior quality and comfort · Open mesh lining material for improved ventilation · TPR graphic for unique styling · Side and top gussets help pad conform to elbow shape · Stretch sleeve with open center to prevent binding and promote cooling · Lightweight and flexible design · Designed to meet CE1621 Standards