Hydro Flask 64 oz Double Wall Vacuum Insulated Stainless Steel Beer Growler, Black FRESH BEER ANYWHERE: Our leakproof cap seals tight to hold carbonation longer, and the unique one-handed design is easy to carry and ensures a perfect pour. SLIP-FREE GRIP: Unlike other leading beer growlers, Hydro Flask has a powder coat, which gives you a solid grip. The Powder Coat works with the premium TempShield insulation, which prevents condensation from forming on the outside of the container, to give you exactly what you want in a craft brew delivery system. JUST THE RIGHT SIZE: Happy hour is even happier with the32 and 64 oz Growler. From binge-watching campfires to counting constellations, the Hydro Flask growler will hold enough brew for your lazy Saturday afternoon, or during a long weekend tailgating event. INSULATION INNOVATION: The double-walled, vacuum insulated TempShield Insulation, the same technology used in all Hydro Flask products, will ensure that your beverage of choice maintains its temperature for many hours to come. Hot drinks up to 6 hours, and cold drinks up to 24 hours. WORRY-FREE TRANSPORT: The leakproof design lets you reliably transport your drink without worry of drinks or spills.