With summer coming up, I didn't want to spend all my time running and biking in sweatpants like I did last year. My other pair of shorts I bought have the horrible tendency to ride up, but these stay put during runs and during bike rides! They're quite form fitting, but they're thick and very sturdy feeling. I also like that they hug enough not to ride up, but not so much I look like a relative of the doughboy. I'm beginning to wonder if I should buy a few more pair since if these shorts went away and I couldn't find them again I'd be very sad. I'm solidly a medium in most non-junior sizes, so I bought the mediums and they fit perfectly.