Sp-x boa drystar® boots | ALPINESTARS

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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