I ordered in blue. so excited at arrival; it looked gorgeous...then i tried it on! i'm 5', 106#, 34d and my upper arms are a little muscular. i normally order 2p (sometimes 0p)...and never a problem. this top was sooo tight under the arms and at the upper arms...if i tried any movement would have probably ripped out the seams! maybe i just received a product that was mis-sized, or defective. all i can say, if you have skinny arms, you'll love it.