alpinestars boots tech 3 boots - dirt bike

• Upper is constructed from a light microfiber that provides flexibility and abrasion resistance • Thermoplastic Polyurethane (TPU) shin-plate construction and a reinforced hook-and-loop closure offers a comfortable, highly customized fit • TPU blade system provides flexibility while helping prevent frontal hyperextension • Wide entry aperture and a hook-and-loop upper closure Thermoplastic Rubber (TPR) flap allows for a broad range of calf fit adjustments for comfort and support • Single-piece TPU panel with honeycomb sculpturing for maximum grip contact with bike and improved heat and abrasion resistance on the medial facing area • Top rear flexion of the boot is supported around the calf by an innovative TPU sliding blade system helps to dissipate friction • Ergonomic buckle system offers secure and highly personalized fit • Innovative TPU lateral ankle protection provides biomechanical link between the middle lateral and the bottom lateral of the boot • Instep and Achilles accordion flex zones for superior support and control • Toes protected by metal shank reinforced TPU shell • Microfiber gaiter helps keep out water and dirt • Polymer buckles with aluminum frames provide self-aligning, quick-release closures for personalized fit • Breathable mesh 3D liner with anti-sliding microfiber suede reinforcement in the heel • Shock absorbing soft poly-foam surrounds ankles and collar • Removable anatomic footbed • High-grip, double-density rubber outer sole is removable and replaceable