The Echo elbow pad uses a perforated neoprene with Cordura and Duratex outer layer with an air plush lining for comfort. To protect your elbows from impact we use SAS-TEC, soft and flexible Visoelastic foam for superior comfort but also extreme impact absorption. This year we also added Sharkskin neoprene gripper to keep the pad firmly in position. Features Breathable perforated Duratex neoprene with air plush lining, back side with dual layer soft Lycra.