The 8.5 was a little smaller than I expected, but they work great for when I'm wearing tights. I liked the style enough that I bought a pair of nines to wear with jeans and thicker socks. There's not great arch support, but I expected that. My only complaint is that it's already wearing through at the back base of the ankle. The black fabric has torn away and you can see the white inside. It's happened after only a week. To be fair, I think it was my fault, because of the way I kick my shoes off, using one foot to pull other boot off. However, I do that with all my shoes and this is the first time it's caused a problem.