As usual with Patty Boutik, I love the clothes I received. This is soft and comfy, and looks great. I am 5'5 and 155 pounds and the Medium is perfect. There is plenty of space/stretch if I had a larger chest (I'm a B) and it minimizes my pillowy belly. I bought 2 and I want to buy all of them now. There is a little elastic or something in place so that the shoulders sit just over your shoulder cap, holds the shirt in place and makes it so the strap doesn't slide inwards or outwards.