Arc'teryx Mens Acrux FL Nylon Upper: PU coated nylon yarns, TPU high abrasion protection films, 3D Moulded heel and toe cap Fit: Adaptive Fit Liner: Non-removeable, 2 layer stretch nylon mono-mesh with air permeable EVA foam core Midsole: Injected EVA, 60 Shore C, 14mm drop Sole: Shell: Vibram Approach with Megagrip compound