The Alpinestars SMX-1 R v2 Riding Boots deliver low-cut sport performance with a balance of protection, comfort, flexibility, and everyday usability. Designed in a Black/Red colorway for riders who want responsive control on and off the motorcycle, these boots feature a lightweight, abrasion-resistant microfiber upper reinforced with strategically placed thermoplastic polyurethane (TPU) protectors. This size US 14 / EU 50 model is identified by manufacturer and vendor part number 2224521-13-50.
Fitment: The ergonomic shape is designed to accommodate a broad range of foot profiles while streamlining the forefoot for improved comfort and control. An anatomically angled closure strap follows the natural shape of the instep, while the front hook-and-loop closure provides a secure, adjustable fit and supports natural flex. A reverse zipper simplifies entry and removal, and the heel counter support system works with the strap closure to improve stability and structural integrity.
Protection and riding control come from double-density ankle protectors, an internal toe box protector, an external TPU heel counter, lateral ankle protection, and an ergonomic TPU shift pad. Accordion flex zones at the instep and Achilles area, along with thermowelded flex grooves, promote controlled movement in riding position. A rear flex bellow includes an airflow opening for added ventilation, while the internal mesh lining helps manage moisture. The removable anatomical footbed combines EVA foam and Lycra for cushioning and support.
The Alpinestars exclusive rubber compound sole uses a grip-focused pattern to enhance traction, water dispersion, durability, and rider feedback. An integrated Alpinestars Transversal Protection Frame helps protect against transversal loads, and the replaceable bi-injected TPU forefoot slider uses an easy-screw design for convenient service. Built for sport and street riding, the SMX-1 R v2 combines dependable motorcycle protection with the walking comfort and flexibility needed for daily use.
Features:
- Brand: Alpinestars
- Model: SMX-1 R v2 Riding Boots
- Color: Black/Red
- Size: US 14 / EU 50
- Manufacturer and vendor part number: 2224521-13-50
- Construction: Lightweight, abrasion-resistant microfiber upper
- Protection: TPU heel counter, lateral ankle protectors, double-density ankle protection, and internal toe box reinforcement
- Closure: Anatomically angled hook-and-loop instep strap with reverse zipper
- Flexibility: Accordion flex zones and thermowelded flex grooves at the instep, medial side, and rear
- Sole: Alpinestars compound rubber sole with grip patterning and integrated Transversal Protection Frame
- Slider: Replaceable bi-injected TPU forefoot slider with easy-screw fixing system
- Comfort: Removable anatomical footbed with EVA foam and Lycra
- Ventilation: Rear flex bellow airflow opening and moisture-wicking internal mesh lining
- Fitment: Designed for motorcycle sport and street riding with flexible on-bike and off-bike performance