The Alpinestars SMX Plus motorcycle boots provide high-performance protection, flexibility, and secure fitment for riders who demand advanced support on the road or track. This black, white, and yellow fluorescent model is sized at US 9 / EU 43 and features an advanced microfiber upper for reduced weight, excellent abrasion resistance, and natural movement. The front flex area, Achilles accordion panel, and asymmetrical front and rear flex zones are designed to improve comfort while maintaining protective coverage.
An evolution of Alpinestars’ Multi-Link Control system helps protect ankle articulation by limiting hyper-torsion, hyper-extension, and hyper-flexion. The system also provides Achilles and ankle impact protection, while the contoured high-modulus shin plate adds impact and abrasion resistance. Dual-density TPU replaceable toe sliders, a replaceable heel slider, and an external side heel slider help dissipate impact energy and encourage controlled sliding during an incident.
Fitment is secured through an inner instep speed-lacing closure, a lateral zipper, and the Alpinestars Lace-Lock System, which uses an advanced polymer resin for quick and precise closure. A micro-adjustable ratchet top closure stows the tab end, while a hook-and-loop tab keeps the zipper pull secured. The breathable synthetic forefoot lining, open-cell foam cushioning, anatomical replaceable EVA footbed, and textured rubber sole support comfort, pedal feel, and consistent grip during motorcycle riding.
Manufacturer: Alpinestars. Brand: Alpinestars. Vendor Part Number: 2221019-125-43. This product is designed to fit riders seeking US 9 / EU 43 motorcycle riding boots with reinforced ankle, shin, toe, heel, and Achilles protection.
Features:
- Size: US 9 / EU 43
- Model: SMX Plus
- Color: Black, white, and yellow fluorescent
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Vendor Part Number: 2221019-125-43
- Construction: Lightweight microfiber upper with abrasion-resistant front flex area
- Ankle Protection: Multi-Link Control system limits hyper-torsion, hyper-extension, and hyper-flexion
- Toe Protection: Dual-density TPU replaceable toe slider with screw-in assembly
- Heel Protection: Replaceable heel slider and external side heel slider
- Flexibility: Accordion microfiber Achilles panel and optimized front and rear flex zones
- Closure: Inner instep speed lacing, lateral zipper, Lace-Lock System, and micro-adjustable ratchet closure
- Lining: Breathable synthetic forefoot lining with open-cell foam shock absorption
- Footbed: Replaceable anatomical EVA footbed with arch support
- Sole: Textured rubber sole designed for consistent grip and improved riding feel
- Shin Protection: Contoured high-modulus shin plate for impact and abrasion resistance