Thank you for viewing! This is a Patagonia reversible jumper. Since it's reversible, I cut off the neck tag, so I'm selling it at a low price. It looks like it will be useful in the coming season. I checked the Patagonia website, and it's the same size as 12M. It has the Patagonia mark on the chest and a very nice design. There is some slight staining on the sleeves. I would appreciate it if you are not concerned about this.