I wear a 9-9.5 depending on the shoe and ordered a 9.5. This was way to huge with about an inch gap between shoe tip and my toes. It didn't feel like it had much support and felt it was forcing my foot into bad posture and formation while walking/standing. Went to my local shoe store and bought a pair of Saucony's which seem more durable, comfortable and better support than Ryka shoes.