Forming part of Alpinestars SMX-1 range of class-leading, low-cut performance riding boots, the SM-1 R incorporates a host of technical innovations for enhanced levels of comfort, fit & durability. Constructed from a lightweight & abrasion-resistant microfiber upper & is reinforced with strategically positioned TPU protectors the SMX-1 R features an evolutionary new rubber compound sole with superior grip patterning for excellent grip both on & off the bike, while the accordion flex zones give support & control regardless of your riding position. Material Main upper constructed from an advanced microfiber for comfort, durability & excellent of abrasion resistance. Technical Innovations Innovative heel counter support system, which works in conjunction with strap closure to offer enhanced fit & support as well as structural integrity. Rear of heel counter has been redesigned with soft TPR insert which works seamlessly with rear flex zone to allow for enhanced freedom of ankle movement & comfort on the bike’s controls, plus durable TPR shift pad. Ergonomic new boot shaping for forefoot streamlining which offers wide-ranging foot profile fit & comfort. Newly designed TPR medial & lateral side protection offers excellent abrasion resistance & durability. Evolved closure strap which is anatomically angled to follow natural shape of rider’s instep. Alpinestars exclusive compound rubber sole with newly designed grip patterning to promote enhanced feel & grip, water dispersion & durability. Fitting & Performance Instep & Achilles’ accordion flex zones are constructed from lightweight microfiber for optimized levels of durability, comfort & maneuverability on & off the bike. Front Velcro® closure system offers a quick & secure fit over the instep area while permitting excellent levels of flex. Strap features TPR puller for ease of use. Medial zip closure ensures convenient in & out, zip is covered with a Velcro® & microfiber flap to protect bike from scratches. Double density ankle protector on medial side layered under the upper offers protective performance & abrasion resistance in key area. Integrated, replaceable bi-injected TPU forefoot slider features new easy-screw fixing concept for quicker & easier replacement. External, high modulus TPU heel counter, lateral ankle & shift pad for enhanced shock protection & durability. Internal toe box protection is layered under the upper for durability, enhanced feel & performance. Removable anatomic foot-bed
Includes:: EVA foam & Lycra® for comfort & support. Internal mesh lining for cooling comfort & moisture-wicking. SMX-1 R is certified to Cat 2 & Certified to 89/686/ECC EU Directive.