I''m a 34B and buy all my bikini tops in size Medium. Sadly, this medium is just a little to large - would be good for a C cup I think. There isn''t a lot of give in the material - it''s not very stretchy - which might be why the other reviewer found it small; it''s a tight fit when you pull it over your head. On me, it''s a little gappy in front, at the top of my breasts. I bought this for playing beach volleyball, but could tell right away it''s one of those tops that I will slip out of when I dive or bend over to pass.

I was surprised to see how small the XL is.