Durable Poly/Nylon/Mesh construction. Alpinestars patented "Vector" design back panel provides maximum comfort and flexibility. Pre-bent leg construction for excellent fit in the riding position. Reinforced and padded 3D knee construction with leather surface for improved heat resistance. Heavy nylon reinforcements on the seat area for abrasion resistance. Sublimated print graphics add style. Leightweight, ventilated, mesh liner. Ratchet buckle waist adjustment. Hidden front zipper. 3D injection molded rubber logos. Stretch ankle cuff.