Holds almost 24 hours' worth of water to go farther, stay out longer. The human fuel tank that keeps your thirst quenched from dusk til dawn. Built with double-wan vacuum insulation, the YETl(R) Rambler(R) Half Gallon Jug keeps the sips ice-cold (or piping hot) to the very last drop. The leakproof MagDock(TM) Chug Cap locks in liquid and every pour is smooth with the removable Glugger-Not(TM) Vent. Features: 100% LEAKPROOF: Carry it with confidence GLUGGER-NOT(TM) VENT: Added for easy sips and smoother pours BEARFOOT(TM) NON-SLIP RING: Stands securely to avoid unwanted tips, slips, and scratches DISHWASHER SAFE: Because no one needs more work to do