Alpinestars SP-X BOA Drystar Boots

Ergonomically optimized touring design, the mid-length SP-X Boa Drystar® Boot® is engineered to deliver the highest levels of comfort when covering big miles in the saddle, Waterproof and breathable Drystar® membrane guarantees exceptional wet weather performance, With its grippy, rugged sole, this boot is built to excel in all conditions and terrains, on and off the bike, Lateral side entry system incorporates BOA Speed Lace System technology for a quick, precise, and secure closure, Main upper is constructed with a combination of advanced microfiber, knitted mesh and co-injected Thermoplastic Polyurethane (TPU) with Lycra for the optimum blend of comfort, breathability and performance, Equipped with a Drystar® liner for proven all-weather performance, remaining waterproof while still being highly breathable, Rubber sole utilizes a special compound that provides textured grip and excellent absorption, and features an integrated support shank for an enhanced sole rigidity, Sports sole design incorporates a high flex inner structure (lasting insole) for superior walking comfort, Design of shift pad features TPU technologies for superior upper foot protection, TPU sliders are strategically positioned on lateral toe-box and on lateral calf for optimum flexion and protection, TPU heel counter design ensures impact protection in a critical area while also offering additional support and security, Dual density ankle protectors are strategically positioned between the upper and padded lining to provide strategic protection in key areas, Internal shin reinforcement is layered under the upper for impact protection in a critical area