Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents.

The Fit4Her technology means we customize every women's shoe to the unique anatomy of the female foot.

Grid-like grooves in the midsole allow your foot to flex while being lighter, for more speed and better performance.

An outsole technology that actually maps the bones and tendons of your foot to help it bend and move naturally.

Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run.

ALTRA EGO

Dual-Nature midsole compound with a responsive, yet soft feel for increased energy return.