Free People: We the Free thermal ruffled long sleeve

This is a beautiful deep plum/ dark purple We the Free thermal in excellent, like-new condition. I wore it twice. The sleeves have thumb holes, so it’s super cozy. The fabric is still in new condition, with no signs of wear. Despite being an XS, it is wide, like many Free People tops. I’ve included measurements to show this. The arms are quite slim though. So, if it’s so great, why am I selling it? It tends to slip off the shoulders and I’m too old to pull off that look! It’s a waste for it to sit in a wardrobe.