Features of the Salomon Women's Tech Amphib 4 Shoe Collapsible heel: Wear your shoes like a normal shoe, or slide it on and off with the heel collapsed Quicklace: Minimalistic and strong lace for one-pull tightening Easy-on, easy-off Welded Upper: Stitch-free Upper construction provides a smooth, glove-like, Fit and feel Outsole: Contagrip FD/Sipping Midsole: EnergyCell Single layer Mesh Synthetic Upper Recycled material Adjustable heel strap Collapsible heel Lace pocket SensiFit Welded collar binding Welded Upper Protective mudguard Fabric Details Weight: 270g Medium heel height: 22mm Midsole toe height: 13mm Drop: 9mm