First off, y'all have to understand that these style of Crocs are unisex sizing, and no such women's only sizes. Given that information, these will be wide for most women's medium width feet. I wear a 6.5 medium (B) in street shoes and ordered M4/W6 and they fit fine, although they look wide. M5/W7 would have been both too long AND wide. They are incredibly comfortable and perfect for hot weather walking outside and around the house. Probably won't take off in a sprint or run up stairs in them though.