A lightweight technical sport pant engineered to offer protection & superior riding comfort on sport & naked bikes, the SP PRO’s pattern draws on Alpinestars expertise in racing garments to create an ergonomic, pre-curved shape that combines a sporty cut with comfort details to deliver the best riding experience. This pant is made from a new 14 oz HDF (High Density Fiber) Stretch Denim Cordura® outer shell for superior resistance to abrasion, while still remaining flexible, with Aramid knitted lining in the most exposed areas for extra abrasion resistance & effective heat transfer reduction. It is also equipped with Rideknit® inserts on the back yoke, knee & calf for optimized freedom of movement & comfort & a connection zipper to fit to any Alpinestars jacket. Features High performance HDF Stretch Denim Cordura® with additional Aramid fiber knitted inserts for superior abrasion resistance Rideknit® stretch inserts for an optimized fit Nucleon Flex plus ultra-flexible armor at knee & hips for effective impact protection Waist connection zipper External triple stitching for strength Adjustable knee protector position for optimized comfort Extra-long ergonomic pockets for safe & secure storage of valuables Stitched rivets for additional strength Fully certified motorcyling garment – AA class