Dedicated female fit for optimal riding comfort, Packed with a host of innovative safety and protective features, they 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, Precision-engineered to closely conform to the anatomical contours of the foot, offering optimal flexibility and improved walking comfort, Every component has been carefully designed with rider performance in mind, including the protection innovations, improved ergonomics, and comfort features, Equipped with Alpinestars Drystar? technology for proven wet weather performance and excellent levels of breathability, Advanced microfiber upper construction for lightweight, high-performance protection against abrasion and superb levels of flexibility, Incorporates Alpinestars waterproof and breathable Drystar? liner for excellent all-weather performance, Front flex and back flexion zones are constructed with textile over-injected on 3D mesh, with soft Thermoplastic Polyurethane (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, Main upper material is constructed from microfiber 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, Ergonomic elastic gaiter in front provides a precise fit in any condition, 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 bike for greater control and rider comfort, Pull flap with dedicated design for increasing pensility and facilitating the hook and loop closure, 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, TPU lateral ankle brace protection provides a biomechanical support and protection between lateral top calf/shin and ankle, Equipped with a TPU shifter zone for superior protection on the lower medial side, 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