These pants are not only really cute, but high quality & really functional. I wore them to a high-intensity body-combat (kickboxing/aerobics) class and weightlifting class & they moved great with me the entire time. I didn't have to worry about them sliding down & revealing anything while doing squats, lunges, etc. They also have great coverage & didn't go sheer during those squats either!
My only wish is that they were single size instead of split sizing. I ordered a M/L since I wear a size 6/medium in everything else (I'm 5'7" & 135lbs) & have a booty & muscular thighs. They were a little bigger behind the knees, but not big enough to try sizing down.
The prints are so fun, you can wear them with just about anything! I ordered the Solar System print & they look great with the Onzie Elastic Tank Top (http://www.backcountry.com/onzie-elastic-tank-top-womens).