Go run in this breathable mesh sneaker constructed with a podiatrist-certified arch-supporting insole, lightweight ULTRA GO® cushioning and a traction sole. Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Removable, cushioned insole with arch support Lightweight and responsive ULTRA GO® cushioning NRT - Natural Rocker Technology for a smooth heel to toe transition Goodyear® Performance outsole delivers enhanced traction, stability and durability Synthetic upper/textile lining/synthetic sole Imported