Alpinestars PU knuckle guards for super impact and abrasion resistance Perforated leather on the glove top improves breathability and provides abrasion resistance TPR on fingers for abrasion resistance Reinforced thumb and palm areas for increased durability Silicone grips on the fingers for improved grip and lever control Glove is constructed in a pre-curved shape for comfort Hook-and-loop wrist adjustment for a secure, customized fit