Relative newcomer Altra broke through a saturated market by introducing three radical design changes to traditional running shoes: 1) a Footshape™ toe box to accommodate the natural shape of the foot; 2) Fit4Her™ technology tailored to the unique anatomy of the female foot; and 3) a ZeroDrop™ platform that keeps a runner's heel and toes even with the ground.

Altra's slimmest-fitting option still allows room for your toes to spread out naturally.

Find It In: The Rivera.

Altra's most common Footshape™ Fit, right in the middle of Original and Slim.

Find It In: A range of shoes including road and trail.

The FootShape™ Fit that started it all, Original is the roomiest of Altra's three options.

Find It In: Road shoes and classic trail models.

Enjoy comfort for miles in the Altra Timp 4! This ultra-cushioned trail cruiser receives a complete overhaul from heel to toe, with a durable upper, soft midsole and grippy outsole. Added drainage ports in the forefoot help you stay dry while passing through streams, creeks and puddles. Every stride on the Altra EGO™ Max midsole keeps you energized when the miles get harder. Dominate the dirt with multi-directional MaxTrac™ outsole lugs. Built for long runs on the trail, the Altra Timp 4 is sure to go the distance!

Hit the trails at high speeds in the Altra Mont Blanc! Designed for racing, this off-road running shoe helps you run fast during long distance events. Slide into a light and breathable upper with strategically placed materials that increase airflow in key areas. Every stride on the Altra EGO™ Max provides the perfect blend of lightweight comfort, with an extra bounce to push the pace. The Vibram® LiteBase outsole uses micro and macro lugs for reliable grip whether you're charging uphill or gliding downhill. For those who go fast, the Altra Mont Blanc is race-day ready!