Altra Provision 4.0 Running Shoe - Men's for Sale, Reviews, Deals and Guides

The newest version of Altra's Provision delivers dynamic support like you've never seen before. Unlike traditional support shoes, which provide static, unchanging support via firmer medial cushioning, this shoe offers support only when you need it. A flexible Guide Rail in the upper helps prevent your rearfoot from leaning too far inwards as you run, and the new Dynamic Arch feature takes it one step further. It features straps that wrap around the arch but only respond to pressure, thus engaging only when your foot falls inwards. The rest of the time they'll stay where they are, making this a perfect shoe for those who may not necessarily be pronating all of the time, but need support when they do.