I sometimes wear 5,5 and sometimes 6 depending on the brand and shoe. It is usually 5,5 and so that is what I ordered. The shoes fits perfectly and it is very comfortable. I have bought much more expensive shoes that were not as comfortable. I got the dark brown color and I really like it. Now I am just waiting for the black to have my size to order it or I will just order the 6 and put insoles inside. Good delivery service too. I am in Canada and it arrived really fast and faster then it was even posted, which never happens.