Altra Men's One 2.5 Running Shoe 100% Fabric/Synthetic Imported Synthetic sole Ombre-colored running shoe featuring asymmetric toe overlay and lace-up closure ZeroDrop platform with 0mm heel-to-toe offset Dual-layer EVA midsole with A-Bound top layer InnerFlex midsole flex grooves Foot-Shaped Toe Box accommodates toe splay