CPO Jacket | Black TweedSince 1968, the CPO Jacket has been a staple of the Nantucket wardrobeserving as a practical, more relaxed alternative to a traditional sports coat. The name CPO, short for Chief Petty Officer, references the jackets origin, inspired by the durable wool overshirts worn by naval officers. Designed to layer easily over a sweater, it offers a polished look without feeling overly formal. Each jacket is hand tailored using our handwoven wool tweed,