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ALPINESTARS SP-X BOA Boots — Black (EU 46) ALPINESTARS SP-X BOA sport touring boots deliver sleek, compact protection with confident walking comfort—ideal for riders who want a performance fit that looks great under tech riding pants. Sport & Sport Touring Performance Designed to fit under riding pants with a mid-height, over-the-pant look Engineered for superior on- and off-bike stability and everyday strides Sport touring focus for high levels of protection without race-boot bulk Protection You Can Feel Upper combines Rideknit® , knitted mesh, and seamless thermo-welded parts TPU heel counter and toe slider reinforcement Alpinestars Transversal Protection Frame (TPF) helps resist impacts and bending/twisting Integrated shin impact protector , dual-density ankle discs , TPU shift pad Comfort & Secure Closure Knitted flex zones at front and back for freedom of movement PU midsole with double cushioned heel compound Removable OrthoLite® insole for long-wearing comfort Medial zip + BOA speed lace system for compact, precise fit Color: Black | Type: Street/Touring | Fit: Mid-Calf | Units: Pair | Size: EU 46
SP-X boots are a sleek sport boot designed to fit under tech riding pants and provide superior walking capability
Optimized for the sport and sport touring rider, the SP-X are compact, mid-height boots with premium levels of protection and comfort on and off the bike
The upper is constructed from a combination of Rideknit® material and knitted mesh, plus seamless thermo-welded parts
The lower features a TPU heel counter, toe slider, and the Alpinestars Transversal Protection Frame (TPF) on the sole, allowing for high levels of protection against impacts and any bending or twisting
Additionally, the sole also features an all-new design with an asymmetric back heel to facilitate the rider's natural stride and promote off-bike stability
For protection, the SP-X has an integrated shin impact protector, dual-density ankle discs, plus TPU shift pad and toe slider reinforcement
For comfort, the knitted areas on the front and back flex points offer great freedom of movement, while the PU midsole with integrated double cushioned heel compound and removable OrthoLite® insock, provide great walking comfort
In and out is facilitated by a medial zip combined with the BOA speed lace system for compact and precise closure
SP-X boots are perfect for those sport riders looking for coverage and protection but without the full race boot, over the pant look