I was a little bit worry about buying any clothing on the internet but I decided to try this after reading other reviews. I am a 34B and I got Medium which fits perfectly. I don't think it's too tight. I also got one "Moving Comfort Women's Alexis A/B Bra" which also work nicely. I love the fact that it doesn't flatten my chest. It provides great coverage, nothing would show through. YEAH! I love them so much that I will buy more.