Worn around the house one day only - too small for me :( Go off-road with confidence with an unparalleled grip, this Altra allows you to take control of your run, whether it's on new dirt or a familiar road. FootShape toe box allows your toes to relax and spread naturally for more comfort and stability during uphill climbs and downhill descents. Balanced Cushioning places the heel and forefoot at equal distance from the ground to promote proper, low-impact form throughout the run. Ripstop Mesh upper. Altra EGO dual-nature midsole compound is responsive, yet soft for increased energy return.