The legend has evolved. Altra's best-selling trail shoe is now equipped with a seamless, stitch-less upper that’s lightweight and durable. With streamlined construction, stay nimble and confident on any terrain. An upgraded MaxTrac™ outsole offers stickiness and grip underfoot while an Altra EGO™ midsole helps achieve the perfect combination of responsiveness and comfort. Let your feet move naturally through nature with Original FootShape™ Fit. This legendary trail runner is calling for some rugged trail adventures.