An engineered mesh upper was made to increase breathability while an updated plush tongue delivers a soft feel at first step-in. With a 4mm drop and rocker shape geometry, this shoe offers a smooth, efficient, and natural toe-off to help you crush your next run. Spread out and say “ahh” with Altra’s Original FootShape™ Fit, Altra's roomiest toe box for natural movement and space through the midfoot. Tackle your daily miles and epic training runs with comfort in every stride