I bought a Marc by Marc Jacobs top through an online "previously loved" threadflipping clothing website. My size. Love the colors. I can wear it with lots of things I have in my wardrobe. Figure flattering.
In came in, and it looked great. The "girls" look fantastic, but the arms... Meh... the elastic and sleeve length was not great. So, out came the seam ripper.
No more elastic..... So much better. I love it now!