This style of loosely fitted knee-length shirt was worn by raftsmen and fur traders on the Missouri, Mississippi, and Ohio Rivers in the mid-19th century. Full sleeves with underarm gussets are gathered and attached into a shoulder yoke, with a narrow cuff at the wrist. A neck gusset set into the shoulders gathers into a simple turned-back collar, which is loosely fastened with a self-fabric tie.The long side openings are reinforced.