We give a generous covering of Kakishibu to most jeans for only $100. Some larger sizes may require a small extra cost. Made from the fermented juice of unripe astringent persimmons, the color comes from the tannin molecules linking together and forming a coating. More than a coloring agent, kakishibu also has strengthening, antibacterial and waterproofing properties. Kakishibu was used in China and Korea, but reached its ultimate utilization in Japan. It was used as a wood preservative, waterproofer, insect repellent, folk medicine, and on washi (Japanese paper), fans, parasols, clothing and in sake production.