The Alpha shin/whip pad uses a perforated neoprene with air plush lining together with super stretchable neoprene straps. To protect your shins from pedal bites and other impacts we use a Nylon hard shield with Eva foam backing and a super durable Cordura front material. They also added extra padding on the inside to protect the inner part of your leg when catching tailwhips. Features Breathable perforated neoprene and Duratex with air plush lining, super stretch perforated neoprene straps and Nylon hard shield with Eva foam backing, inner leg articulated whip pad.