I normally wear an 8.5 wide. I ordered these in 9 medium in the teal. They're perfect. Spacious, good support, very comfortable, plenty of room for a thick wool sock. And they're so cute! Love the laces, even if they aren't totally necessary. The treads are amazing. I feel like I have Michelins on my feet. I went out in the snow with them today, and although I didn't do a lot of walking, they were not slippery on any surfaces I walked on. That's important to me. I've already broken one arm, and demolished the other shoulder in falls on the snow and ice. I wanted some boots that would not let me down in the snow and ice. I think I've found them.