Great shoe, although I am only using it as a daily wear shoe. The fit seems to run a bit large, I am usually a 12.5-13 4E shoe size and I ordered the 13 and it was way to big. Returned it for a 12 and that fits better, but might have liked a more snug fit with a 11.5. The reason I like this shoe so much is how well it breathes. I have sweaty feet and cannot wear a pair of shoes multiple days in a row because they are not dry. This shoe I can! I normally wear a wide shoe and due to the design of this last, their width was just fine. The "nestfit" isn't a gimmick, it is actually cut in the shape of a foot. If you pull the insole out, you can see this. I noticed that my heel seems to slip on both feet, but I haven't developed any blisters (maybe its the fit/making me walk "correctly"). So far great shoe, will see how well they last. I did purchase another color as well (size 12)!