I ordered a M based on reviews I’m usually a 10/12 In clothes. I said I would get a medium for an oversized look but it’s too over sized, I will still use it for lounging around the house but it’s a pity but it is a mistake on my part , it would be interesting to see how big a XS/S is considered how big the M is. My advice would be to size down ! Overall the fleece is good quality.
Rated 2 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to size and 2 is Runs Large