The SIDI Adventure 2 Gore-Tex Boots are the much-awaited sequel to one of the most ardent, trustworthy, & highly-acclaimed motorcycle boots of the past half-decade. With the introduction of the Adventure 2 Gore-Tex Boots, SIDI has welcomed their latest vision for what a go-anywhere, anytime motorcycle boot should be. As rugged as the road is long & coming from a premium pedigree that is unparalleled amongst their contemporaries, the SIDI Adventure 2 Boots will undoubtedly retain the top of the podium for many miles to come. Features Gore-Tex, highly breathable & waterproof membrane Single Flex System, It no longer squeaks when you walk Rear of calf panels protect the Achilles tendon Non-Slip rubber sole Replaceable micro adjustable buckle system with memory retention straps Upper in full-grain Microfiber material & Cordura Nylon inner sole with removable arch support pad Easy to put on Cam-lock buckle system, combined with a Velcro flap & an elastic expansion panel Cambrelle lining New design Rigid shock resistant, anatomically shaped heel with hyper extension block for maximum protection Split grain leather inner Reflective panel above the heel Protections PU Shin Plate Elastic panel on the calf area Back reflective inserts Rigid, shock resistant, anatomically shaped heel cup Plastic support on the ankle area Shift pad Gore-Tex The Gore-Tex® membrane is at the heart of all products engineered with Gore-Tex® fabrics. It contains over 1.4 billion microscopic pores per square cm (9 billion pores per square inch). These pores are 20, 000 times smaller than a water droplet, but 700 times larger than a water vapor molecule. Water from the outside will never penetrate. Yet perspiration can escape easily, so that less moisture is trapped in the insulation. The result: you stay warmer when it’s cold & drier when you perspire. Velcro & replaceable buckle system The gaiter is closed with a soft PU velcro strap to prevent the entry of rocks & dirt & features a wide adjustment. The closure is completed by a 2-buckle closure system where each buckle works independently of each other, each composed of a toothed strap & a hook with micrometric adjustment memory. The buckle, strap & hook are replaceable. The buckles have only one fixed point (via a screw), which ensures easy closing, allowing the boot to adapt to the leg of the rider & to provide greater comfort. Flex-System For better racing performance & safety, the boot is equipped with, on the rear support structure, a system similar to Vertebra System used on Sidi’s Road Racing boots making it more flexible & a joint, the Flex System, where the plastic heel ends. This item cannot be shipped to the United States & Canada.