Men’s J. Crew Garment-Dyed Corduroy CPO Shirt in Brown, size L A naval favorite since the 1930s, the CPO shirt is a cold-weather classic that you'll wear all season long. CPO shirts were military-issued overshirts that crossed over into civilian life and became a staple of wardrobes across the country. While the originals were made in a heavy wool fabric to withstand inclement weather at sea, we built this one in 100 percent cotton corduroy for more versatility (and way less scratchiness). Fun fact: The word "wale," which refers to the peaks in a corduroy fabric, comes from an old Anglo-Saxon word for the ridges in a ploughed field. 100% cotton. Machine wash. Import. Select stores. Item BJ464. Regular fit. A more traditional, full cut, roomier in the body and sleeves.