Full-grain 1.4mm leather construction for comfort and increased feel when riding. Gilly lacing system for comfort and fit. Tech 10 style upper buckle for a secure fit. Asymmetrical TPU toe shifter area for abrasion and impact protection. Airflow mesh increases air circulation. Injection-molded TPU heel for impact protection. Ankle area is internally lined with suede for an anti-slip fit. Alpinestars exclusive sole compound.