In reply to Choss:
Good for casual and light crag duty. I like the way you can fold down the heels and slip into them. Great rubber. Think of them as a flip flop replacement.
They're not made for heavy use, I wore mine for some long mountain days because I had nothing else. Now the green foam stuff under the rubber is compacted and some of the stitching is scuffed open. Also they seem to have shrunk after getting wet.
Surprise; product doesn't perform well in job it wasn't designed for.