Super comfy! I wear a size 10 and ordered a large / extra large. When I first put them on my feet I actually thought they were too small, but after I wore them, they molded to my foot size and it is absolutely amazing. I would buy them over and over again. So if you have a long foot, definitely get the large / extra large and give it 30 minutes or so until you pass judgment on if it fits or not. And then get used to loving them as much as I do! :-)