Adding to Stanley’s already impressive line of growlers, flasks, and lunch box coolers is the new Stanley Vacuum Stein. Between the 18/8 stainless steel, latching lid and vacuum insulation, this absurdly well built stein will keep your beer cold for up to nine hours and carbonated for longer than other alternatives on the market. It comes in the iconic Stanley Hammertone Green colorway and will look perfect in your collection of the previously mentioned flasks, thermoses, and growlers. This is basically a 24oz growler that’s easier and more socially acceptable to drink out of. It’s also dishwasher safe, so you’ll never have to worry about today’s porter mixing with yesterday’s IPA.