haflinger wool clogs from Germany.
try this link:
<a href="http://www.haflinger.com" target="_blank">http://www.haflinger.com</a>
I wear them almost constantly and now own 4 pairs.
The unique thing about them is they have WOOL uppers. What this means is insulation, and so your feet are cool in summer, and warm in winter. And most importantly to me, my FEET NEVER SWEAT IN THEM. I have never owned a shoe in which my feet don't sweat.
The arch is very comfortable, like a birkenstock but better, shock absorbtion very good. I wear them year round.
My other favorites are my Prada sport loafers, which are also very comfy, but made of leather and so my feet sweat in them. In addition at $350/pair they are way too expensive to risk ruining in the hospital.