raglan sleeve

A raglan sleeve is a type of sleeve that extends to the neckline, featuring slanted seams from the underarm to the neck, rather than a traditional shoulder seam. This design originated with the first Baron Raglan, Fitzroy James Henry Somerset, a British field marshal. He wore a loose overcoat with this distinctive sleeve style during the Crimean War.12

Initially, "raglan" referred to the overcoat itself, but the term evolved to also describe the sleeve style and garments featuring these sleeves, such as a "raglan cardigan". The first known use of "raglan sleeve" in print was in 1866.321