Alpinestars Gunner Waterproof Men's Street Motorcycle Boots (Black, EU Size 44) 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 bike's controls Waterproof membrane layer between upper and lining for proven performance in difficult weather conditions Alpinestars' exclusive vulcanized compound sole with unique side wrapping design, built to withstand the demands of the road The Gunner Waterproof Boot is CE certified.