Patagonia Flannel Shirt Men's XL Organic Cotton Long Sleeve Button Up Blue Plaid Very good pre-owned condition without any flaws or stains. No missing buttons. Men's Patagonia Long Sleeve Button Down Flannel Shirt. Size: X-Large. Color: Light and dark blue with orange plaid pattern. 2 chest pockets with buttons. Logo tag on left hip. Straight yoke with pleated back. 100% organic cotton. Comes from a smoke free environment.