Crochet trim shell

Ordered the ivory and the hickory in my regular size, a 1X. According to the measurements in the CWC sizing guide, I should be a 2x, but that sized top rarely works for me (too big across the shoulders, gaps under the arms). Might well have been able to wear this shell in that larger size.
The Ivory is so sheer, however, that it definitely is going back. The Hickory will do as a shell with a brown bra underneath, if I decide to keep it (might just be too clingy).
The fabric feels nice and lightweight.