Packed with a host of innovative safety and protective features, the Stella SMX-6 v3 Boots are the ultimate track and street performance riding boots packed with race-derived technology and protective materials designed to give riders a crucial performance edge on the track or street.

With its newly designed upper, the Stella SMX-6 v3 has been precision-engineered to closely conform to the anatomical contours of the foot, offering optimal flexibility and improved walking comfort. Every component on the Stella SMX-6 v3 Boots has been carefully designed with rider performance in mind, including the protection innovations, improved ergonomics and comfort features.

Key Features
• Dedicated female fit for optimal riding comfort.
• Advanced microfibre upper construction for lightweight, high-performance protection against abrasion and superb levels of flexibility.
• New front flex and back flexion zones are constructed with textile over-injected on 3D mesh, with a soft TPU for enhanced impact abrasion while also promoting a natural forwards and backwards movement.
• An evolution of Alpinestars unique ankle brace protection system provides a bio-mechanical support and protection between the lateral top calf, the shin and ankle, for superior ankle articulation, as well as providing Achilles and ankle impact protection.
• Alpinestars Lace-Lock System is constructed from an advanced polymer resin for a guaranteed quick, precise and secure closure.
Construction
• Main upper material is constructed from microfibre to provide durability, high levels of abrasion resistance, and flexibility.
• Ergonomic last for forefoot streamlining to enable greater control and improved precision on the bike's controls.
• New ergonomic elastic gaiter in front provides a precise fit in any condition.
• New front flex and back flex design combines textile and over-injected, soft TPU areas, offering improved impact abrasion and optimal, natural front and back movement of the foot.
• Medial side entry opening/closure system features elastic-mounted zipper with wide hook and loop closure.
• Streamlined contact surface with the bike for greater control and rider comfort.
• New pull flap with dedicated design for increasing pensility and facilitating the hook and loop closure.
• New, dual compound removable anatomic footbed made in EVA with Lycra on top.
• Internal insole with integrated shank reinforcement for support to the arch area and foot protection.
• Internal toe box protection is layered under the upper for durability, improved feel, and overall performance.
• Sole is constructed from a lightweight rubber compound offering excellent grip on the pedal box.

Protection
• TPU lateral ankle brace protection provides a biomechanical support and protection between lateral top calf/shin and ankle.
• Equipped with a new TPU shifter zone for superior protection on the lower medial side.
• A new strategically positioned, race-derived TPU shin plate protector delivers superior impact and abrasion resistance while offering a more compact design, so the boot fits easily under the pants.
• Dual density TPU ankle protectors are strategically positioned between the upper on the medial side and the padded lining to provide the strategic protection in key areas.
• Replaceable, dual density TPU toe sliders with screw-in assembly provides comprehensive protective coverage around the outer toe area while still being supremely flexible for walking comfort.
• New back calf TPU bridge is designed to reinforce the level of protection and support.
• CE certified to EN 13634:2017.