Main upper material constructed from advanced microfiber for durability and long lasting comfort Incorporates ergonomic toe box construction for improved compatibility with bike's controls and for superior, wide ranging foot profile, fit and comfort Internal heel counter and toe box gives boot enhanced structural integrity TPU Shin Plate and shift pad offer support and resistance for impacts New TPR design on lateral toe gives more flexibility and protection against abrasion Drystar membrane layer between upper and lining for proven performance in difficult weather conditions Three adjustable lateral Hook and Loop closure straps ensure secure closure and highly personalized fit. Straps feature TPR pull tip for ease of closure and durability Internal toe box and heel counter protection is layered under the upper for durability, improved feel and performance Highly comfortable and durable technical textile collar lining Dual density ankle protectors are backed with foam inner padding for protection on both ankle sides High modulus midsole follows shape of foot and incorporates structured shank reinforcement Innovative weight-saving laminated technology utilized on shin plate for weight-saving and additional protection against impacts Removable anatomic foot-bed features EVA foam and textile for support and comfort Rear and lateral reflective insert for improved visibility Alpinestars exclusive vulcanized compound sole RADON DRYSTAR is CE certified to CE CERTIFIED EN 13634:2010