The Endorphin Shift couples a performance ride with a bit of stability to make runs feel easier by taking the stress off feet and treating them to lots of feel-good cushioning. The PWRRUN cushioning underfoot provides just-right softness that’s feels forgiving without feeling squishy. The SPEEDROLL an always-forward geometry, creates a lively rolling feel underfoot. It provides an effortless ride quality that feels as if the shoe is doing the work for you. FORMFIT surrounds your feet with a made-for-me feel that gently guides feet as you ease on down the road in light weight comfort.