These sandles are the best sandles I've ever owned for outdoor use. They stick to wet rock better then anything I've tried. I used them on a 5 day fly fishing trip where I was rock hopping over dry and wet areas all day. Things things stick like my climbing shoes do on dry rock. The strap adjustment system is pretty well designed, though the buckle did make the top of my foot sore after 3 days. All and all I would suggest these Chacos to anyone wanting a good solid outdoor sandle. (I bought my son a pair and he says the same)!