Strangely uncomfortable, the sole is very hard and my foot slides forward. Makes no sense why the sole is so hard at the rear where the air pocket is. First day I wore them I was on my feet all day, my feet hurt badly at the end of the day. Compared to boost soles on these are like walking on rocks. Can't return them because I was at a theme park all day and couldn't take them off.
Ordered a half size up as recommended, the size recommendation is correct. They fit fine.