Altra Men's Superior 1.5 Trail Running Shoe 100% Manmade Imported Synthetic sole Textured running shoe featuring logo applique at outer side, logoed toe guard, and lace-up vamp ZeroDrop platform with 0mm heel-to-toe drop GaiterTrap Technology Natural Ride System Removable StoneGuard rock protection system Dual-layer EVA midsole with A-Bound