The SMX Plus v2 Boot perfectly blends sleek sports styling with advanced protection features developed in Alpinestars performance footwear department. The durable and light microfiber upper is reinforced with a rugged polymer protector and the exclusive Multi-Link Control (MLC) system prevents ankle torsion while offering freedom of movement. This boot offers flexible accordion microfiber on the Achilles for enhanced natural movement and strategically positioned ventilation areas in the heel and shin TPU for breathability and airflow. It also features a stretchable accordion panel for a close fit and ease of entry and removal. The upper construction is advanced microfiber for lightweight, high-performance protection and superb levels of flexibility. The front flexible zone is made of soft microfiber to improve abrasion resistance and natural forward and backward movement. The extended accordion microfiber on the Achilles heel provides improved natural movement. The strategically positioned ventilation area in the heel and shin TPU is for enhanced breathability and airflow. The external entry/exit has a stretchable accordion insert for a snug fit and ease of entry and removal. The advanced contoured shin-plate protection provides superior impact and abrasion resistance. Alpinestars' evolution of its unique Multi-Link Control (MLC) system provides advanced external support to the ankle articulation, limiting hyper-torsion, hyper-extension, and hyper-flexion, while also providing Achilles heel impact protection and ankle protection. The large heel counter with side ventilation extends to the ankle and is combined with a padded shock-absorbing insert and self-molding ankle protectors. The replaceable dual-density TPU toe slider is screwed in, providing protection around the outer toe area. The replaceable heel slider and outer side heel slider are positioned to dissipate and absorb shock, as well as promote sliding in a crash. Large, asymmetrical accordion zones at the front and rear are optimized to maximize flexibility for maximum comfort and improved safety. The upper fastening closure is a micro-adjustable ratchet buckle. The advanced synthetic forefoot lining is laminated with open-cell foam for shock absorption and a highly breathable lining in the ankle and leg areas for comfort. The removable anatomical Alpinestars EVA insole provides arch support and pedal feel in the forefoot. The durable sole, designed to improve riding feel, features a textured rubber compound for good grip. The internal lacing system and the unique side zip offer a precise and secure fit. Alpinestars' lacing system is made of advanced polymer resin to ensure a fast, precise, and secure closure. The hook-and-loop strap locks the zip, keeping it flat and secure. The SMX Plus v2 Boot is CE certified to EN 13634:2017.