Tighter arms
I have larger arms for my frame, so I'm glad I sized up because the arms fit more on the snug side in my opinion. The back was a little loose, but I don't mind.
Response from Lulus.com:
Hi Madison, thanks for your review! We apologize that the fit of this top wasn't quite right for you. Our fit experts (lulus.com/customerservice) are available to provide personalized assistance for all of your sizing needs. We're in the office daily, and would be happy to help! XOXO