While the sole is comfortable on hard surfaces, after wearing around town on a few errands, mostly by car, the skin on the tops of my little toes was rubbed off. I also had red patches of skin in other areas on the tops of my feet which would have rubbed off had I continued wearing them. I was limping by the time i got home, and now I can't wear regualr shoes without bandaids until they heal. The uppers are too stiff, and the edges around the vents are sharp. Also, the insides of the little button things that hold the straps hurt the sides of my feet where they rub them. If I hadn't discarded the shoe box I would have returned them. Now they just take up space in my closet. Perhaps with socks they'd be OK, but that would defeat the purpose of sandals/clogs. I'm sorry I wasted my money. The irony is that I bought these specifically for comfort - not style.