I own several adidas shoes, I'm always a 6.5 womens. I purchased these off the website because weren't in store yet and I was concerned that they might be too big or smal. I'm not sure if I should have bought a 7 or if it's just the shoe. The length feels right but the toe of the shoe pushes down on my foot. General you don't have to break things in from adidas, I feel like maybe these do. They are very stiff. They are definitely more comfortable then average flats but I'm not sure their worth 70ish dollars. Overall I'm not sure if I'd recommend them or not. I've just been wearing them around the house for a couple hours to decide what id like to do.