Altra Women's Olympus 275 Size:8 The real innovation lies in

The real innovation lies in the new backing material: Even lighter and more flexible

We reimagined the sole to give a superior grip and traction in various terrains

fast hydration and bounce-free stability

SMART INFRARED technology

Altra Women's Olympus 275 Size:8 The real innovation lies in### Altra Says ### We went all in on tech so you can go all out on the trail. Its got durability, protection, and lightweight comfort from top to bottom. We partnered with MATRYX to design a one piece woven upper thats lightweight and protective, for high performance and high mileage. Protect your feet from debris with a built in scree sleeve. A zonal fit lock is designed to deliver a confident, secure fit while a TPEE sock liner helps improve