The Gunner Waterproof offers class-leading comfort and weather-proofing, as well as external and internal protection systems. The Gunner exclusive compound sole offers grip and effective water run-off while the dual Velcro closure system affords a secure and personalized fit. GUNNER WATERPROOF BOOT KEY FEATURES: Technical synthetic material main upper construction incorporating durable microfiber front and rear accordion flex zones. New boot shaping gives greater comfort and incorporates ergonomic toe box construction for improved compatibility with bikes controls. Internal heel counter and toe box give boot enhanced structural integrity. Waterproof membrane layer between upper and lining for proven performance in difficult weather conditions. Exterior dual density protector on the lateral side while on the medial side the protector is layered under the upper to promote a better contact with the bike. External TPU heel counter and shift pad offers excellent protection and durability. Innovative weight-saving laminated technology reinforces shin plate, plus heat-pressed Astars logo. Two adjustable Velcro straps ensure secure closure and highly personalized fit. Straps feature TPR pull tab for ease of closure. Highly comfortable and durable technical textile collar lining. Rear reflex for greater visibility in poor conditions. Contoured, high modulus midsole follows shape of foot and incorporates shank reinforcement. Removable and replaceable anatomic foot-bed features EVA foam and textile for comfort and support. Alpinestars exclusive vulcanized compound sole with unique side wrapping design, built to withstand the demands of the road.