With the women's TORIN 4, Altra takes a fan-favorite and tunes it for race day. The brand new Altra Quantic midsole is both lightweight and cushioned. The Balanced Cushioning places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your run. The Footshape Toe Box allows your toes to relax and spread out naturally for more comfort and stability. The Fit4Her technology offers a customized fit specific to the anatomy of the female foot. The strategic decoupling on the outsole gives you a flexible yet smooth ride coupled with a lightweight performance mesh, perfect for quick miles.