This is a vintage (likely) 1980s classic red and blue plaid flannel long sleeve button down shirt with double button down chest pockets. All buttons are vintage pearlized buttons. The brand tag is missing and the manufacturer, contents, country of manufacture, and size tag is missing or worn out. Based on the measurements, I believe this is a men’s size extra large. Based on the feel of the fabric, I believe this is a wool or wool blend shirt. The shirt is not insulated. The only defect observed other than the label issues is a loose portion of the seam lower under the left arm (see closeup photo) that should be repairable with a sewing machine. This is an iconic vintage plaid fleece!!