I am six feet tall, 210 lbs, and normally wear a size 16. I bought the Black 1X and wore them to spin class. Very comfortable, no rolling, no falling or sagging. Very pleased! However I must say I am glad I washed them before because the black dye ran, I then soaked in the sink overnight in order to let dye fully bleed before I wore them. I was just happy they help up during my workout!