Packed with a host of innovative safety and protective features, the SMX-6 v3 Boots are the ultimate track and street performance riding boots. They are precision-engineered to closely conform to the anatomical contours of the foot, offering optimal flexibility and improved walking comfort. Advanced microfiber upper construction for lightweight, abrasion-resistant protection and excellent flexibility. New flex zones with 3D mesh and TPU overlay to promote natural movement and improved impact protection. Alpinestars ankle protection system provides biomechanical support between calf, shin and ankle as well as impact protection.