No matter whether you need your drinks to stay chilled or toasty warm, this mug has a vacuum insulated body and a thermal lid that will do the job, keeping the contents hot for 4.5 hours, cold for 5 hours and iced for 20 hours. Crafted from 18/8 stainless steel, it will never rust and is BPA-free, as well as being leak proof and fully packable. The lid is dishwasher safe, for hygienic deep cleaning, and the push button lid lets you open, drink and close with only one hand. In 1913, William Stanley invented the all-steel vacuum bottle. Since then, the Stanley vacuum flask hasn't missed a day of work, a football game, or a trip to the great outdoors. The durable double-wall stainless steel insulation of the distinctive Stanley vacuum flask is iconically American and still works as hard today as it did nearly 100 years ago.
