These shorts are PERFECT if you need longer shorts for work, but don't want denim or the black "khaki" fabric. They almost feel like the type of fabric that khaki pants are though- very thick, but softer. Since they are thicker as opposed to yoga-type shorts or leggings, there is absolutely NO CHANCE that your underwear will show through, even if you wear the brightest colored ones and do squats. I wouldn't necessarily recommend them for working out, but for work they are perfect. Maybe find something thinner and more stretchy for a gym trip. The waist band is very thick and high quality, but a bit too high for my taste- so I fold it down a little. I'm 5'4, 115 pounds and I bought a size small. Since the waist band is thick, it would be great for tummy control if you need it, but maybe still go up a size larger than usual if your stomach is bulgy, otherwise the shorts may be too tight in that area and uncomfortable. As for washing, I've washed and worn them about 3 or 4 times now, and they've held up great besides getting a little shorter on the legs. They used to be right at the top of my knee, now they're about 3 inches above it. I do usually go against the rules and stick em in the dryer for like 5-10 minutes to partially dry before laying them out to finish drying though, that's probably why.