The front of the Delta elbow pad is made of perforated Duratex neoprene with air cushioning, while the back is made of double-layer Lycra for maximum comfort. To protect your elbows from impact, we use our DFS foam under a soft polyamide cap. This year we've also added a Sharkskin neoprene gripper to keep the pad firmly in place. The Delta series pads also feature top and bottom straps for a perfect fit.