The perfect thermos which keeps your liquid cold up till 24 hours, and warm up till 12 hours. The D-Bottles are available in 350 ML, 500 ML and 750 ML. Sparkling, Shiny and Matte colors. By purchasing a D-Bottle, you’re supporting our mission via “Buy one Give one” model. This means that, when you BUY a D-Bottle, a water bottle will be donated to a charity project.