Built to satisfy your thirst, Yeti's Rambler Half Gallon Jug holds enough liquid to keep you hydrated all day, so when other people are heading home for a siesta, you're still hammering down on the project or session. Made from a solid 18/8 stainless steel, the Rambler's FatLid maintains your beverage's temp by integrating an entire inch of insulation into the cap, so no matter how hard you're working in the sun, or the snow, the Rambler will keep your liquids hot or cold -- just the way you want them.