Data sheet: Materials: Inner lining to the knee. 600D polyester outer. DETAILS: Zipper with snap button front closure. Double adjustable waist with Velcro. Armortex® Kevlar reinforcement on the knee. Extra foam padding on the knee. high density nylon panel on the rear seat. Elastic fabric on the back of the knee and calf. Double and triple stitching in critical areas. Weight 450 gr.