I'm 5'9 210lbs and a large compresses chest decently. I should have gotten a medium for extra compression. It's easy to get on and off the way the straps are designed. My only complaint is that the rear neck line is cut down almost to the middle of my back and the seam shows through plain shirts like an eye sore. With a printed shirt this is not a problem. If the rear neckline was cut up to about wear a t-shirt collar would be it would blend in.