Pendleton 'Mason' Plaid Flannel Button-Down Shirt (L) Classic Pendleton button-down flannel shirt in a deep red and maroon shadow-plaid pattern. Features a single chest pocket, button-down collar, and ultra-comfortable soft cotton feel. Great layering piece for workwear, cabincore, or outdoor styles. #pendleton #flannel #fall workwear #cabincore #plaidshirt