These Knee Pants are so comfortable, perfect length, nice relaxed fit.  Im 53, I don't want to work out in tight clothes. I am a sz 4 pants and got a medium, perfect fit. They wash up well, be sure not to use fabric softener, wash cold,. inside out. They dry really fast after a hard work out and they have pockets! Pockets! I have searched high and low for something with pockets. Plus they have the drawstring waist,combined with relaxed fit hide the "flaws" you may want hidden.  Price right, love em, ordered 4 pair.  All vendors great service.