You’ll be amazed at how fast you can cover the trails in the Altra Experience Wild. A responsive, rocker-shaped midsole and 4 mm heel-to-toe drop make running in the great outdoors feel smooth and easy. This trail shoe’s ability to give you grip and traction in a variety of conditions, combined with a roomy, FootShape toe box make the Experience Wild an easy choice for the majority of your off-road adventures. Details: Upper: The durable machine knit upper has a plush tongue and padded heel collar that gives you the protection and durability of a trail shoe with the comfort and forgiveness of a daily trainer. Plus, there are GaiterTrap™ attachment points if you want to wear trail gaiters to keep dirt and debris out. Midsole: A lightweight molded compression midsole is soft and responsive, while the shoe’s 4 mm drop and rocker shape make running feel effortless. Outsole: Altra’s durable MaxTrac™ outsole gives you grip and confidence on the trails.