The legend has evolved. Our best-selling trail running shoe returns in a new version with a seamless upper, for maximum lightness and resistance. With an aerodynamic structure, you have all the agility to challenge any terrain with confidence. A redesigned MaxTrac™ outsole offers maximum grip and traction, while the Altra EGO™ midsole provides the perfect combination of responsiveness and comfort. Original FootShape™ Fit: designed to ensure that your feet move naturally. The trail running legend is ready to give her all on the roughest terrain. Will you answer the call?