I can't say enough about the comfort of these shoes. I work in a surgical center on concrete floors and you'd never know it by wearing these clogs. I found the strap adjustment to be a little difficult, but I might chalk some of that up to slightly arthritic fingers. Once the adjustment is done however, you are good to go and no further adjusting is necessary. These run a tad big but then I always knew I was going to wear them with socks and so they work perfect for me.

I normally wear a 6.5 US women's size. I ordered the 6.0. Excellent fit with a smidgen of room still at the heel end of the shoe.
These shoes are also deceptively featherweight given what the image appears like. When the box arrived and I pulled the shoe box out of the shipping box, I swear I thought it was empty. That's how light these shoes are. And it makes a big difference when you're on them for a 10-12 hour shift.

Loved them so much, I bought a second pair.