The Patagonia Men's Button-Up Shirt is a classic outdoor-inspired piece made from organic cotton flannel in a navy, brown, and white plaid pattern. This long-sleeve shirt features a collared neckline, button closure, and a chest size of 21 inches. Perfect for casual occasions in the winter and fall seasons, this shirt also includes a pointed collar style and pockets for added functionality. With its high-quality material and brand reputation, this button-up shirt is a stylish and sustainable choice for men looking for a versatile and comfortable wardrobe staple.