The material is pure silk. This is a stylish Nishimura Orimono brand obi (sash) with a dark navy blue base, a wave-patterned horizontal stripe design, and subtle colors, with a single thin off-white line. The reverse side has no lines. Nishimura Orimono is a long-established weaving mill with over 150 years of history, and this is a masterpiece made using high-quality silk threads with a beautiful luster. Because they use 30 to 60 thin warp threads, the fabric has firmness and a hard texture with a glossy feel. It is said to be an obi that ties securely, is not easily loosened, and is easy to wear. This is an item with an elegant atmosphere. Size: 10.5 x 408 cm (excluding tassels) Condition: Very beautiful. There are no noticeable stains or dirt, but please understand that this item has been stored at home. #MimichanKakobi