W 3.3" H 9.4" / 27 floz Eau Good uses Binchotan active charcoal to filter water by absorbing impurities such as chlorine and adding minerals such as calcium. It has been used by the Japanese for over 500 years and will make your tap water taste great. Eau Good is made from Tritan with a natural cork stopper with silicone cap to ensure a leakproof seal. The iconic shape is lovely to hold and drink from, and the fabric finger loop makes it easy to carry.