CPO is an abbreviation for Chief Petty Officer (U.S. Navy petty officer), an outerwear shirt with its roots in work uniforms. CPO shirts are usually made of thick melton fabric. However, we have selected a lightweight wool flannel fabric. This allows the shirt to be worn with a thick inner layer such as a sweatshirt, or tucked in and worn with an outer layer. We added a polyester address cloth to the back of the collar and cuffs where friction occurs. This is one of the elements of a genuine CPO shirt.
- Wool 90%, Nylon 10%
- Made in Japan