ALPINESTARS SMX-6 v2 Boots - Black/Red - US 6.5 / EU 40 22230171340 Custom Air Cleaner Assembly — Round/Open complete with new race algorithm

complete with new race algorithm which is available as a download Waist adjustment for an improved riding fit

E-Glass internal packing for maximum packing life

Waterproof jacket for track use in wet conditions

Frontal protection features a dual closure system with an internal microfiber flap

ALPINESTARS SMX-6 v2 Boots - Black/Red - US 6.5 / EU 40 22230171340 Custom Air Cleaner Assembly — Round/Open complete with new race algorithmBoot upper incorporates an innovative front and rear bellows and rear calf zone for superior levels of flexibility Boot upper is constructed from microfiber for durability and abrasion resistance Ergonomic forefoot streamlining enables greater control of the bike's controls and provides a superior, wide ranging foot profile for excellent fit and comfort Thermoplastic Polyurethane (TPU) lateral ankle brace provides a biomechanical support between the