Alpinestars SMX Plus v2 BootsThe Alpinestars SMX Plus V2 Boots are the next generation of the popular SMX Plus line, known for track day performance and protection. A high shin plate helps guard against impacts from your foot pegs. Ankle protection comes in the form of Alpinestars' signature Multi-Link Control system that helps keep your ankle from moving in ways it is not supposed to while still giving you enough range of motion to operate foot controls. A wide heel counter wraps around the back of your foot with shock absorbing padding. A replaceable heel slider keeps you moving in the event of a crash. Accordion stretch zones at key areas provide flexibility and improved fit. With replaceable parts and protective design, the Alpinestars SMX Plus v2 Boots will be a reliable track boot for many seasons.Features: Advanced microfiber upper construction for lightweight high performance protection and superb levels of flexibility Front flex areaconstructed withsoft microfiber for improving abrasion resistance and natural forwards and backwards movement Flexible accordion microfiber on Achilles gives enhanced natural movement Strategically positioned ventilation area in heel and shin TPU for breathability and airflow Outside entry/exit has stretchable accordion panel for a close fit and ease of entry and removal Contoured high modulus shin plate protector gives superior impact and abrasion resistance Alpinestars unique Multi-Link Control system provides advanced external protection and support for ankle articulation, limiting hyper-torsion, hyper-extension and hyper-flexion as well as providing Achilles and ankle impact protection Wide heel counter with lateral ventilation extends to the ankle and is combined with a shock absorbing padded insert and self-molding ankle protectors Dual density TPU replaceable toe slider with screw-in assembly providing protective coverage around the outer toe area Replaceable heel slider and external side heel slider are positioned to dissipate and absorb shock and promote sliding during an accident Large front and rear asymmetrical accordion zones are optimized to maximize flexibility for maximum comfort and improved safety Micro adjustable ratchet top closure stows tab end Advanced synthetic forefoot lining, laminated with open cell foam for shock absorption and highly breathable lining in ankle and leg areas for comfort Alpinestars anatomical and replaceable countered EVA footbed provides arch support and forefoot pedal feeling Durable solefeatures evenly textured rubber for consistent grip Inner instep speed lacing closure and unique lateral zipper offer precise and secure fit Alpinestars Lace-Lock System is constructed from an advanced polymer resin to guarantee a quick, precise and secure closure Hook and loop tap locks the zipper pull closekeeping in flat and safe CE-certified to EN 13634:2017