ALPINESTARS SMX+ Vented Boots - Black/Red - US 9 / EU 43 2221119-13-43 Jam Air Riding Shoes A six-step maintenance system designed

A six-step maintenance system designed to recharge any K&N Filtercharger air filters

3mm genuine bovine leather with High Resistant Stretch Fabric (HRSF) strategically positioned for comfort

Maintaining shell integrity is vital for safety and with the possibility of multi-directional forces impacting on the visor

Ergonomically designed for maximum stability across lumbar spine and lower back

Zippered lower leg gussets helps the pants fit closely around riding boots

ALPINESTARS SMX+ Vented Boots - Black/Red - US 9 / EU 43 2221119-13-43 Jam Air Riding Shoes A six-step maintenance system designedThe SMX Plus v2 Boot perfectly blends sleek sports styling with advanced protection features developed in Alpinestars performance footwear department. The durable and light microfiber upper is reinforced with a rugged polymer protector and the exclusive Multi Link Control (MLC) system prevents ankle torsion while offering freedom of movement. Advanced microfiber upper construction for lightweight high performance protection and superb levels of