In collaboration with the official Van Gogh Museum®, IZY Bottles brings out the 4 most famous paintings from Vincent van Gogh: Self-Portret The most environmentally friendly insulated bottles: IZY Bottles drinkware is by far the world's most environmentally friendly drinkware on the market. IZY Bottles are 100% CO2 neutral by replanting trees in Ethiopia, and IZY Bottles donates 1000x the capacity of each bottle sold to fresh drinking water projects in Africa. Besides that, you avoid using around 180 plastic bottles per year by using an IZY Bottle. The best quality: IZY Bottles are made of the best 304 stainless steel. This not only makes them extremely durable, but this will also keep your drinks 24 hours cold and 12 hours hot. If that is not enough, IZY Bottles offers its drinkware collection at the best price on the market. Of course, without losing any of its quality. Can be used as: thermos / water bottle / drinkware / flask / jug / can / vacuum flask.