Altra Provision 4.0 Running Shoes Foot Shape Zero Drop Black Gray Pink Womens Size 7.5 Great preowned condition with all signs of wear shown in photos. Original insoles have been replaced. Unlike traditional support shoes, which provide constant unwavering support, this shoe delivers support only when you need it, making it a great option for runners who only pronate sometimes, or pronate only moderately when they do. Thanks to a combination of a flexible Guide Rail by the heel and a series of midfoot straps that wrap underneath the arch, you'll have a support system that's only engaged when your foot starts to fall inwards, allowing you to have a neutral, unobtrusive feel when you don't need the support. Road running shoe that offers support only when you need it. Dynamic Arch straps engage for support if you start to pronate. Soft, flexible Guide Rail gently keeps your foot in place. Cushioned midsole reduces impact force over long miles. Mesh upper allows for cooling airflow in warmer weather. FootShape toe box allows toes to splay naturally as you run. ZeroDrop platform promotes a healthy, low-impact midfoot strike.