Pendleton Sir Pendleton Wool Flannel Shirt Mens Large Red Plaid Button Up USA Fabric Pendleton “Sir Pendleton” long sleeve flannel shirt in a classic red plaid pattern, size Men’s Large. Made from 100% pure virgin wool using USA fabric, known for its quality and durability. Features a button-up front, chest pocket, and timeless outdoor/workwear style. A staple piece that layers well and holds strong resale demand. Overall good condition with normal signs of wear.