"A heavyweight wool jacket from Filson in a classic workwear style. Crafted from Filson's Mackinaw wool which has insulating warmth, natural water-repellency and great levels of comfort. The jacket has a snap closure front with two large snap closing pockets. The left chest pocket features an extra pocket with three individual compartments. The jacket comes in a taupe and brown plaid pattern and is finished with a full cotton lining and polyester lining through the sleeves." 100% Mackinaw Wool outer shell, great quality, XL size, runs large. Bought new years ago from the Filson store near Elgin Il. Very warm jacket, runs large. I'm 6'4" 215lbs and the jacket leaves a lot of room for layers and/or flexibility. I'd say it's closer to a 50L or 52L jacket fit from other brands. Most Filson items run large though, so if you're familiar with the brand. The chest measures around 26" across pit-pit. Let me know if you need any additional pictures or info. Clearing out some items in my closet I haven't been using.