Alpinestars Supertouring Gore-Tex Men's Motorcycle Street Boots (Black, EU Size 45) Main upper constructed from premium full-grain leather, offering high levels of comfort, durability and abrasion resistance Extensive instep and Achilles accordion flex zones constructed from microfiber for comfort, extension, control and support Integrated waterproof and highly breathable GORE-TEX membrane for unsurpassed all-weather performance. Breathable GORE TEX textile interior lining throughout boot Top collar incorporates breathable textile lining for comfort and fit around the calf area Highly flexible sole features Alpinestars' exclusive rubber compound for the optimal combination of comfort and grip