these are hiking and climbing shorts. I don't do either (well i hike when people don't want to go riding) but these are super comfortable. Been using these as a basketball style short subsitute and they're definitely more comfortable for the causal lounging, or doing some work in the yard. The best part is that they make great post ride shorts because you can pull over and hop in the water with no hesitation as they dry quickly and you won't be soaking your car seat.
I'd buy more.
As for sizing, I'm 5'6'', 165, with a 31" waist and the smalls fit nicely, sitting above my knees perfectly.