I got the 6.5-7.5 and I am usually a 7 shoe size and this fits perfectly, not too small or too large, juuuuust right. I bought this because 1. It looked really comfy which they are, 2. reasonably priced, 3. the description said that this moisture wicking but it isn't. I only gave it three stars because it does not wick moisture like it says it does. At least it's washable.