Sir Pendleton Pure Worsted Wool Button-Down Shirt Premium quality vintage long-sleeve plaid shirt from Pendleton Woolen Mills. Made from lightweight, fine worsted wool in the classic Authentic O'Neill Tartan pattern. Key Details: Brand: Pendleton / Sir Pendleton Size: Medium (M) Material: 100% Fine Worsted Wool (USA Fabric) Pattern/Color: Authentic O’Neill Tartan (Red / Green / White Plaid) Style: Button-down collar, chest pocket, single-cuff sleeves Care: Dry Clean Only Condition: Excellent Used Condition – Very well cared for, clean, and stored safely with no flaws. Approximate Measurements (Lying Flat): Chest (Pit-to-Pit): 23" Sleeve Length: 23.5" Perfect for layering in autumn/winter, smart casual outings, or collectors of quality heritage menswear!