As low as $99.99/mo with or . (Pay in 4 interest-free payments)
ALPINESTARS SP-X BOA Boots — Black (EU 38) Sport-touring protection with a sleek under-pant profile. The ALPINESTARS SP-X BOA boots deliver a compact mid-height fit, superb on/off-bike comfort, and advanced impact control—ideal for riders who want coverage without the bulky feel of a full race boot. Key Features Under-tech pant friendly: Designed to fit neatly beneath riding pants while offering confident walking ability. Rideknit® + knitted mesh upper: Lightweight, breathable support with seamless thermo-welded construction. TPU protection where it matters: TPU heel counter, toe slider, and the Alpinestars Transversal Protection Frame (TPF) for resistance to impact and bending/twisting. All-new sole for natural stride: Asymmetric back heel promotes a smoother walking motion and better off-bike stability. Impact + shift reinforcement: Integrated shin protector, dual-density ankle discs, plus TPU shift pad and reinforced toe slider. BOA precision closure: Medial zip with BOA speed lace system for compact, fast, and accurate fit. All-day comfort: Flex zones on front/back, PU midsole with double cushioned heel compound, and a removable OrthoLite® insock . Product Details Brand: ALPINESTARS Model: SP-X BOA Use: Street / Touring Color: Black Fit: Mid-Calf Size: EU 38 (Adult) Type: Pair Upgrade your sport riding setup with the SP-X BOA—comfort, protection, and precision closure in a clean, modern silhouette.
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
or 
. (Pay in 4 interest-free payments)
