Ushikubi tsumugi is a silk textile produced in the city of Hakusan, Ishikawa prefecture. It was recognized as a traditional craft in 1988. Some distinctive features of Ushikubi (which literally translates to cow’s neck) tsumugi silk are its manual production process and the use of rare silk threads from double cocoons that are made together by two silkworms. With traits like excellent durability, breathability, soft texture and a beautiful sheen, Ushikubi tsumugi fabric is used in indigo-dyed kimonos with traditional kasuri, ceremonial kimonos, sashes, and small accessories. Recently Ushikubi tsumugi has been used in Paris Fashion Week and otherwise noticed overseas as a clothing fabric.
For more detailed information including a description, history, and the general production process, please see the Kogei Japan: Traditional Crafts of Japan website.