LIQUID INDIGO is an eco-friendly alternative to powder indigo, which cuts back significantly on caustic soda and water usage. Additionally shade stability remarkably improves. Since 2017, TDM used LIQUID INDIGO and saved 25 million gallons of water in production processes. In 2019, Twin Dragon has partnered with Indigo Mill Design to develop INDIGO ZERO, a foam dyeing process that reduces 99% of the water used during the fabric making process. The technology is expected to decrease water usage by more than 500 million gallons per year.