{"product_id":"alpinestars-smx-6-v3-motorcycle-boots-black-us-9-eu-43-part-2223025-10-43","title":"Alpinestars SMX-6 V3 Motorcycle Boots Black US 9 \/ EU 43, Part 2223025-10-43","description":"SMX-6 V3 Boots - Black - US 9\/EU 43\n\u003cp\u003eThe Alpinestars SMX-6 V3 motorcycle boots deliver race-derived protection and performance for riders who demand dependable coverage on the track and street. Finished in black and sized for US 9 \/ EU 43, these boots feature an advanced microfiber upper that balances lightweight construction, abrasion resistance, flexibility, and everyday riding comfort. The SMX-6 V3 model is designed to support confident movement while maintaining essential protection in high-impact areas.\u003c\/p\u003e\u003cp\u003eAlpinestars’ unique ankle brace protection system provides biomechanical support between the lateral upper calf, shin, and ankle. This system helps control hyper-torsion, hyper-extension, and hyper-flexion while supporting natural ankle articulation and providing Achilles and ankle impact protection. Front and rear flexion zones combine textile construction with soft TPU over-injection to improve impact and abrasion resistance without restricting forward or backward movement.\u003c\/p\u003e\u003cp\u003eAdditional protection includes a race-derived TPU shin plate, dual-density TPU ankle protectors, a TPU shifter zone, and replaceable dual-density TPU toe and heel sliders. The toe slider uses a secure screw-in assembly, while the heel and external side heel sliders are positioned to promote shock dissipation and controlled sliding during an accident. The Alpinestars Lace-Lock System uses advanced polymer resin for quick, precise, and secure closure.\u003c\/p\u003e\u003cp\u003eThese boots fit riders seeking a protective sport motorcycle boot for performance riding, track days, and spirited street use. The product is manufactured by Alpinestars and supplied under vendor part number 2223025-10-43. Verify the Alpinestars sizing chart and intended riding application before purchase to confirm the best fit.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSize: US 9 \/ EU 43\u003c\/li\u003e\n\u003cli\u003eModel: SMX-6 V3\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eBrand: Alpinestars\u003c\/li\u003e\n\u003cli\u003eManufacturer: Alpinestars\u003c\/li\u003e\n\u003cli\u003eVendor Part Number: 2223025-10-43\u003c\/li\u003e\n\u003cli\u003eUpper Construction: Advanced microfiber material provides lightweight abrasion resistance and flexible performance\u003c\/li\u003e\n\u003cli\u003eAnkle Protection: Biomechanical ankle brace system helps limit hyper-torsion, hyper-extension, and hyper-flexion\u003c\/li\u003e\n\u003cli\u003eFlex Zones: TPU-over-injected front and rear flex zones support natural movement with added impact and abrasion protection\u003c\/li\u003e\n\u003cli\u003eShin Protection: Race-derived TPU shin plate helps resist impact and abrasion\u003c\/li\u003e\n\u003cli\u003eAnkle Protectors: Dual-density TPU protectors provide coverage in key impact areas\u003c\/li\u003e\n\u003cli\u003eToe Slider: Replaceable dual-density TPU toe slider uses a secure screw-in assembly\u003c\/li\u003e\n\u003cli\u003eHeel Sliders: Replaceable heel and external side heel sliders help dissipate impact and promote controlled sliding\u003c\/li\u003e\n\u003cli\u003eShifter Protection: TPU shifter zone protects the lower medial side of the boot\u003c\/li\u003e\n\u003cli\u003eClosure System: Alpinestars Lace-Lock System provides quick, precise, and secure fastening\u003c\/li\u003e\n\u003cli\u003eFitment: Designed for track riding, performance street riding, and sport motorcycle applications\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ALPINESTARS","offers":[{"title":"Default Title","offer_id":67565386039531,"sku":"34041815","price":349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0611\/3882\/9547\/files\/4368783.png?v=1790785714","url":"https:\/\/ctracingservices.com\/products\/alpinestars-smx-6-v3-motorcycle-boots-black-us-9-eu-43-part-2223025-10-43","provider":"Cascade Tire \u0026 Racing Services","version":"1.0","type":"link"}