Double Insulated Bong Water Bottle

Mister Green’s Double Insulated Bong Water Bottle keeps liquids cold for approximately 24 hours or hot for about 12 hours. The BPA- and phthalate-free stainless steel thermos jokingly reads Bong Water, features a finger-carry lid (for easy toting) and a lite-duty carabiner, too—which can be upgraded to a Mister Green Gear carabiner for $10. Available in plenty of colorways, it can hold 750ml.

Skittle Thermos Flask

Designed by Lund London, this playful 500ml reusable flask is made from recycled metal and available in five colors. The double-walled interior (crafted from high-grade stainless steel) keeps liquids warm for 12 hours or cold for 24 hours, and it’s all closed with a vacuum-sealed lid. The playful colors—from bubblegum blue to retro-inspired pastels—add to the vessel’s charm. Price is in Pounds.

Thermos Brand’s Overnight Coffee Challenge

The heritage brand puts its 24-hour claim to the ultimate test

Advertorial content: When Sir James Dewar invented the vacuum flask in 1892, he knew that he’d created a tool that would change storage forever. What he didn’t know is that his creation, the Thermos, would be a household name over a century later. Derived from the Greek word for heat, Dewar’s invention was hailed for its ability to keep liquids either hot or cold for …