The Filson CPO Wool Jac Shirt in size Medium is a versatile and durable button-up shirt suitable for various occasions such as travel, parties, casual outings, work, and business meetings. Made from flannel fabric with a collared neckline and spread collar style, this shirt is perfect for all seasons with features like pockets and breathability. The shirt also has a solid green color with a retro outdoor theme, ideal for hunting, fishing, or outdoor activities. With a high-quality Filson brand and American origin, this shirt is a stylish and practical addition to any man's wardrobe.