This is a double-layered (awase) Nagajuban (long undergarment) made of genuine silk. It's white with a pattern. It's a good quality item. The collar is a wide collar, and a detachable collar (han-eri) is also attached. It is said that you need one Nagajuban for each kimono. Please refer to the photos. The length is 128cm, the shoulder width is 66cm, the sleeve length is 49cm, the front width is 27.5cm, and the back width is 32.5cm. It has been aired out and treated with a deodorizing and sterilizing agent.