The Alpinestars SP-X BOA Boots are compact, mid-height sport riding boots designed for riders who want dependable motorcycle protection, comfortable walking performance, and an easy over-the-pants fit. This black and silver EU 48 model is designed for sport and sport-touring use, fitting neatly under technical riding pants while providing coverage beyond a casual riding shoe. The manufacturer is Alpinestars, and the manufacturer and vendor part number is 2222024-119-48.
The upper combines Rideknit® material, knitted mesh, and seamless thermo-welded components for flexibility, airflow, and a streamlined fit. Protection is provided by an integrated shin impact protector, dual-density ankle discs, a TPU heel counter, TPU shift pad reinforcement, and a TPU toe slider. The Alpinestars Transversal Protection Frame (TPF) in the sole helps resist impact, bending, and twisting while supporting stability during both riding and walking. The asymmetric rear heel design promotes a natural stride and improved off-bike balance.
Comfort-focused details include knitted flex zones at the front and rear, a PU midsole with an integrated double-cushioned heel compound, and a removable OrthoLite® insole for supportive walking comfort. A medial zipper works with the BOA® speed-lacing system to provide quick entry and precise, compact closure. The SP-X is a practical choice for sport riders who want protection and coverage without the bulk or extended height of a full race boot.
Features:
- Fit: EU 48 sport riding boot designed to fit under technical motorcycle pants
- Model: SP-X BOA
- Color: Black and silver
- Brand: Alpinestars
- Manufacturer: Alpinestars
- Manufacturer and vendor part number: 2222024-119-48
- Construction: Rideknit® material, knitted mesh, and seamless thermo-welded upper components
- Protection: Integrated shin protector, dual-density ankle discs, TPU heel counter, toe slider, and shift pad reinforcement
- Sole protection: Alpinestars Transversal Protection Frame helps resist impacts, bending, and twisting
- Walking comfort: Asymmetric rear heel, cushioned PU midsole, and removable OrthoLite® insole
- Closure: Medial zipper with BOA® speed-lacing system for quick, precise adjustment