This is a NARA CAMICIE knit cut-and-sew top with a ribbon tie design. The ribbon tie goes through a loop. Size M It's thin, but made of 100% wool, so I think it will be warm. It has been worn a few times and is in good condition. How about wearing it as an inner layer under a jacket? Actual Size: Length: 63cm Width: 45cm Please understand that this item has been stored at home before purchasing.