This is a single-layer silk (正絹) nagajuban (long undergarment). It has a seat patch (居敷当て), a collar opening (衣紋抜き), and a half-collar (半衿). It's a light blue color with a pattern. There is a small stain on the right sleeve, which is shown in the last photo. Please refrain from purchasing if you are concerned about this. Length: 123cm, Sleeve length: 65cm, Sleeve length: 48cm, Front width: 29cm, Back width: 31cm. It has been aired out and treated with a deodorizing and antibacterial agent.