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Euro 37 38 39 41 42
US 6 7 8 9 10
JPN 23 24 25 26 26.5

Riding a sport bike in tennis shoes is not always the best, safest or most comfortable way to ride, but then again neither is wearing a full race boot. To split the difference the Alpinestars Stella SMX-1 R Boots are designed to bridge the gap, blending the protection and features found in Alpinestars’ race boots with a low-top design that is comfortable and easy to wear. Constructed from a lightweight and abrasion-resistant microfiber upper and is reinforced with strategically positioned TPU protectors the Stella SMX-1 R features an evolutionary new rubber compound sole with superior grip patterning for excellent grip both on and off the bike, while the accordion flex zones give support and control regardless of your riding position.

Designed and developed for an optimized women’s performance riding fit Main upper constructed from an advanced microfiber for comfort, durability and excellent abrasion resistance Innovative heel counter support system, which works in conjunction with strap closure to offer improved fit and 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 greater freedom of ankle movement and 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 and comfort Newly designed TPR medial and lateral side protection offers excellent abrasion resistance and 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 improved feel and grip, water dispersion and durability Instep and Achilles accordion flex zones made from lightweight microfiber for optimized levels of durability, comfort and manoeuvrability on and off the bike Front VELCROÂ brand closures offer a quick and 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 and out; zip is covered with VELCROÂ brand closures and microfiber flap to protect bike from scratches Double density ankle protector on medial side layered under the upper offers protective performance and abrasion resistance in key area Integrated, replaceable bi-injected TPU forefoot slider features new easy-screw fixing concept for quicker and easier replacement External, high modulus TPU heel counter, lateral ankle and shift pad for improved shock protection and durability Internal toe box protection is layered under the upper for durability, improved feel and performance Removable anatomic foot-bed includes EVA foam and Lycra for comfort and support Internal mesh lining for cooling comfort and moisture-wicking.

CE certified to Cat 2 CE Certified to 89/686/ECC EU Directive