* 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 These Alpinestars SMX-6 v3 boots are packed with innovative safety and protection features, making them the ultimate race and road performance riding boots. Equipped with race-derived technology and protective materials to offer riders a critical performance edge on the track or road. With a newly designed upper, the SMX-6 v3 has been precisely engineered to closely contour the foot's anatomical shape, providing optimal flexibility and improved walking comfort. Every component of the SMX-6 v3 boots has been meticulously designed with rider performance in mind, including the protective innovations, enhanced ergonomics, and comfort features.