I love these boots. However, most of the reviews said to go a size bigger. I had the complete opposite problem. Two of my other girlfriends went up a 1/2 size and I stayed at my normal 6. I loved the 6, but they were way too tight. I could hardly walk in them. I exchanged them at 4:30 pm Thursday online and received my new pair Friday at 1:15pm!!! So happy with the quality and promptness of the exchange. In my opinion I would go up a 1/2 size. They do move on the heal but Frye says that is perfectly normal until they are worn in.