I bought these to wear for a vacation later this summer. They are comfortable, but in a qualified way:  - the heel of the upper is very stiff and so far hasn't softened up, resulting in scrapes/blisters near my Achilles' heel;  - there is a seam inside the shoe right where my smallest toe is, so that toe is getting beaten up; and  - the shoe is just ever so slightly too large, so it moves and rubs as I walk.  Hopefully these are breaking in issues and will resolve as I wear them. Right now, I'm wearing socks with them and I'd rather not... or I need to find no-show socks. They are lightweight and cushy; perhaps I should have returned them for a smaller size (I bought 8.5).  Update on 8-8-2015. I returned these. I swapped out the insole for a better, not-quite-orthotic insole and they felt so much more comfortable! But then... I noticed they suddenly got really loose. They weren't tight to begin with, but now they were more like flip flops. Awful. When I stopped to check them out, I noticed the elastic holding the top tongue to the sides was coming undone. That was the last straw with these. They didn't last thirty days!