This is a long-sleeved Pendleton check shirt. The three-color check of yellow, black, and brown is something I haven't seen before. It's very useful for layering. I believe it's from before 2000, and the fabric is 100% virgin wool, so it's likely high quality. Please note that there are some repair marks and discoloration (from the time of purchase). I purchased it at HOORAY in Shinsaibashi. Poker's vintage Eddie Bauer Columbia patagonia Barbour HELLY HANSEN snow peak LANDS' END POLO RALPH LAUREN Brooks Brothers Fred Perry LACOSTE Tommy Hilfiger L.L.Bean