Alpinestars Smx 6 V2 Drystar Racing Boots 2243017-10-39

a waterproof and breathable performance boot for track and street that is anatomically profiled and packed with innovation, the evolved smx-6 drystar® features the latest in alpinestars? footwear design and development. every component on this ce certified boot offers a crucial performance edge, in the form of protection innovations, improved ergonomics and comfort features. features:- newly designed boot upper incorporates innovative front, rear bellow and rear calf zones for superior levels of flexibility.- main upper material constructed from advanced microfiber for durability and repeated abrasion resistance, plus a waterproof and breathable drystar® liner for excellent all-weather performance.- ergonomic new last for forefoot streamlining to enable greater control of the motorbike?s controls and for superior, wide-ranging foot profile, fit and comfort.- alpinestars? innovative tpu lateral ankle brace protection provides a biomechanical support between lateral top calf/shin and ankle and offers improved structural integrity, protection against impact shocks, repeated abrasion resistance and flex support.- alpinestars? new and exclusive compound rubber sole promotes improved feel and grip, water dispersion and durability.- air vents on the heel counter and shin plate improve comfort and reduce fatigue on short and long rides.- high modulus tpu injected shin guard, calf protector, heel counter, shift pad and toe slider for improved shock protection and durability.- double density ankle protector on medial side layered under the upper offers protection in key area.- integrated, replaceable bi-injected tpu slider features new easy screw fixing concept for quicker and easier replacement.- innovative instep and achilles accordion flex zone construction for superior comfort, extension, control and support.- internal insole with the shank reinforcement integrated for support to the arch area and foot protection.- medial side entry opening/closure system features elastic-mounted zipper with wide closure for flexibility and secure fit. the aperture opening is large to promote easier entry/exit.- internal toe box protection is layered under the upper for durability, improved feel and performance.- new, dual compound removable anatomic footbed includes eva and lycra for performance, comfort and support.