I really love the fit of these leggings. They are just snug enough to stay put, though there is also a drawstring on the inside waistband that helps as well, if you need it. The stitching is such that you will probably hear some popping the first time you put them on but they are sewn with the type of locking seam where this does not affect the leggings. I am 5'8" and 195 lbs, small waist and large, muscly butt/thighs - I chose a size medium, and they fall about 7/8 length on me, which is great, in my opinion. The dark grey are my favorite pair, though I also own the black. The black gets slightly see thru in the bum when bending over but they fit so well, I decided I didn't care. (The dark grey do not do this.) Overall, I definitely recommend trying them!