Initially introduced in the 1930s as a dependable layer for Chief Petty Officers, The CPO Shirt has since become a lauded staple for hunters, hikers, and anyone else in need of some rugged utility. While we’ve applied a few thoughtful updates (like a tailored silhouette and a more durable wool blend), the function-first spirit of the CPO shirt that made it such an asset in the field remains. Pair it with a tee or wear it under a jacket; The CPO is ready for duty in every season. Material Crafted from a sturdy, mid-weight blend of wool and organic cotton with a chambray lining and finished with dual chest pockets and back pleats for better range of motion. Specifications 8-oz. 59% organic cotton, 41% wool twill. 6-oz. 100% organic cotton chambray detailing. Two back pleats for ease of movement. Two chest pockets with button through flaps. Adjustable button cuffs. Double-needle felled construction. Dry clean only. Made in China.