smx 6 v2 vented boots black gray red fluorescent vented Footwear Size:42 single layer waterproof outer shell YGroup_8950524 single layer waterproof outer shell main construction The rest of the Superfaster’s chassis is constructed with advanced microfiber and Rideknit® panels with seamless thermo welded parts and held securely in place on the rider’s foot with a speed lace system and a long medial side zip opening packed with innovative features and has the latest advancements in Alpinestars' performance footwear design and development A track and street performance riding boot which incorporates a newly designed upper for flexibility