I normally wear a size 10, but ordered a 9-1/2 because I bought this same shoe in denim in a 9-1/2. I can't explain why, but the blue one fits better and is roomier. Shoes are well made and comfortable. I don't like 'traditional' tennis shoes with laces, and the bottom of this is like tennis shoes, but 'cuter' on top. They are more versatile. I have at least 5 or 6 pair of Propet shoes and they are comfortable and look nice.