Bought it for my wife, but they run a little smaller, we think it runs a half size smaller. Lightweight, agile uppers create a minimal feel Combination of Helion™ superfoam and connected Cloudtec® cushioning creates a balanced level of cushion for comfort on moderate terrain Polypropylene 70-80% Speedboard provides a smooth, comfortable ride Missiongrip™ rubber outsoles with squared lugs on heel and forefoot, plus multi-angled lugs on shank and toe areas, provide reliable traction Contain recycled materials