I bought a Large, and I'm 5'3" @ 155 lbs, measuring at 36D-33-43. I like the way this scrub top subtly follows the curves of my body while leaving room for complete ease of movement. It also has enough room for all the stuff I keep in my pockets. I will say I feel the breast pocket is almost completely useless, at least for my purposes. It's not deep enough to hold much, if anything. The material is not as thick as some other brands, but not too thin either. Only time will tell how it holds up to the wash and with wear and tear.