Perforated mesh knit uppers provide enhanced breathability with a comfortable, socklike fitBalanced Cushioning platforms place your heel and forefoot the same distance from the ground, encouraging better alignment, better form and a low-impact landingAltra EGO midsole cushioning and 5 mm insoles provide a responsive yet soft rideINNERFLEX gridlike grooves in the midsole are designed to provide flexibility and movementFootpod technology encourages natural movement underfootGranted the APMA Seal of Acceptance, which the American Podiatric Medical Association awards to footwear they find promotes good foot healthA-1