Filson'smedium-weight, soft cotton twill shirt is versatile enough for use at in the field or while traveling. It features durable Corozo button closure, and breathable fabric that's been pre-washed for soft comfort and a unique vintage appearance. It also has button-adjustable cuffs, a pleated back for freedom of movement across your shoulders and two flap-free chest pockets for a cell phone, pencil and other tools.