The flagship invention of the Coldest, this beast is built to be your last half-gallon. Engineered with triple insulated stainless steel, it’s super durable and reusable. It’s also the first 1 Gallon without having to tip over your head using our duo-lid, patented, insulated flip-top lid 2.0 technology. Our new straw lid connects to our new crafted gallon lid, together they seamlessly sync to our gallon base to make the greatest gallon water bottle of all time. The Half Gallon Coldest Water bottle keeps water COLD for up to 70+ hours and HOT for 13+ hours. This thing is truly a beast and sometimes one’s best friend. Built with true Coldest Steel, this thing will take a beating. We believe in building things that last so every component is easily interchangeable and replaceable giving you decades of quality use. The half gallon gives you enough water to last for days and is perfect for those who enjoy cold or hot water all day while skipping refilling.