Custom-Made Woven Koka Kakugo Obi, Yonezawa Weave Although it's a bit old, the pattern gives a rather modern impression. Made of 100% silk, it feels good to the touch and is easy to tie. Woven in a bag shape, the pattern is the same on both sides. 100% Silk Width: 10cm Length: Approximately 415cm Yoshiki Kogyo Co., Ltd. The obi band shows some discoloration, but it is a new, unused item.