* 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 | Article: Alpinestars SMX-6 V3 Fluo Motorcycle Boots, black-red, Size 45 for Men Alpinestars SMX-6 V3 Boots Black Red Fluo, Size: 45