If Paul Bunyan and Don Draper were sharing some hooch around the campfire, I bet the Stanley Classic Flask in Hammertone Crimson is what they'd use to tip it back. And so would I.
According to the plate on the front of the flask, Stanley has been around since 1913. And according to Wikipedia, flasks have been around a couple hundred years longer. But despite its name, Stanley's Classic is contemporary in its contribution to your whiskey-coated good times. The flasks are made of rust-proof 18/8 stainless steel, and naturally BPA-free. They promise to travel in both pack and pocket without leaking and, for that matter, from hand to mouth leak-free as well, thanks to a wide mouth design.