I LOVE this sports bra. Naturally I was hesitant ordering clothes from Amazon, but the quality is amazing. The fabric is super nice and not too thin. The bra pads are flattering, I have a small chest 35B, and medium was perfect. Don’t size up like the other reviews say! I got a Large at first cause that’s what other reviews said... large can fit and I can make it work, but no way there’s any support if I work or run in it. The bra band fits on me but it’s too loose to support my chest up while working out. I’ll still keep the Large though since I opened it already. I’ll most likely use the Large when I want to put a push up tube bra inside of it for show/performance purposes only, not for legit working out. Medium fit perfect on me, I feel like I honestly could get away with a small too, the Medium band is stretchy enough for me to fit two fingers under it snugly and I’m sure I could make the small work too. Interesting how all 3 sizes could fit me.... but overall I say medium is perfect. I’m 5’6” 140lbs 35B and waist 31”. Such a cute top and awesome quality for the price, so stylish too got so many compliments already!