These zori feature a natural material with dark navy thongs. Made in Japan - Design: Dark navy striped thongs - Material: Unknown if straw or igusa. Synthetic sole - Size: Approximately 25cm Thank you for viewing. How about these comfortable zori for the coming season, perfect for wearing barefoot? I haven't used them for several years and have kept them at home, but there is no noticeable deterioration. There are no smokers in the house, but there are cats and a dog. I will wipe them down with alcohol before shipping, but please refrain from purchasing if you are sensitive to this. Also, please note that all sales are final and returns are not accepted.