Alpinestars SMX-6 V3 Boots - Motorcycle Closeouts by Rider 。A class-leading, low-cut performance riding boot, the SMX-1 R 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 Vented Riding Shoe also features a rubber compound sole with superior grip patterning for excellent grip both on and off the bike, while the accordion flex zones give support and control regardless of your riding position.