You might think I've gained weight, but I'm not. I ordered the size that all my other shirts are. This one is too tight everywhere - neck, bust, waist, back. I don't know if I can ever wear it. And as several other reviewers have pointed out, it's as thin as cigarette paper and shows boobs through well. (And it's already too tight anyway, so wearing a tank top only makes it worse.) My advice is to order at least one size up. My order may need to be gifted again.