ALPINESTARS SMX-1 R v2 Boots - Black/White - US 12 / EU 47 2224521-12-47 Replacement Air Box Covers but also smooths airflow over

but also smooths airflow over (and from the side) of the helmet

sleek and promote exceptional resistance against impacts

High performance extension for the DF-12 Diffusers

Developed to smooth out the power curve

ALPINESTARS SMX-1 R v2 Boots - Black/White - US 12 / EU 47 2224521-12-47 Replacement Air Box Covers but also smooths airflow overA class leading, low cut performance riding boot, the SM 1 R v2 Vented Riding Shoe incorporates a host of technical innovations for improved levels of comfort, fit and durability. Constructed from a lightweight and abrasion resistant microfiber upper with extensive perforations for maximum airflow and breathability, the shoe is also equipped with strategically positioned TPU protectors for abrasion resistance in a key area. The SMX 1 R v2 Vented