HS Motorcycle Leather Pants Biker Touring Perforated 1.3 - 1.4 mm drum dyed cowhide leather.Nylon mesh lining. Available in Solid and Perforated versions Anatomical construction means this pant is pre curved as per riders natural position. Built-in layer of foam padding into sides and knee areas with double layers of leather on seat area Leather stretch panels at side of legs, above knee, and back of waist. Velcro knee patches included to accept knee sliders.