Wayyy too small. I wear a size 8.5 and with the Birkenstock style shoes I was told to order at least one size bigger so the lip edge around the shoe fits around your foot not under it. So I ordered a size 10, I couldn't even get them on my feet. Have them to a friend who is a size 7 and they fit her well except the fabric under her foot started peeling up after 1 wear. She said they are very comfortable but they wear way too quickly and run like 3 sizes too small.