As close as you can get to bare feet, the Nike Free Run 2 is built to feel natural and weightless. This kid's performance trainer features a blue breathable man-made upper and a cushioned insole to absorb impact while a Nike Free sole flexes with the foot UPPER: Fabric & man-made, LINING: Fabric, OUTSOLE: Nike Free Material : Man Made, Colour : blue, Product Code : 5702925060