Bear Grylls, the survival expert who is best known for drinking his own piss, is getting into the water bottle game.
Grylls designed a triple-walled, vacuum-insulated water bottle that he is calling the Bear Grylls Ultralight Flask. The BPA-free bottle is constructed from stainless steel and capable of keeping cold beverages (or your own piss) chilled for or up to 24 hours and hot beverages (or your own piss) warm for up to 12. It weighs just 9.6 ounces and comes with a lifetime warranty.
You can purchase one right here.