Gear: We featured the excellent Machine Era Wallet a while back and today we bring you the Machine Era Tumbler. The Machine Era Tumbler is inspired by a Mason Jar and is the perfect size for sipping whiskey. The thick wall aluminum helps ensure your drink of choice will stay cold longer. Machined from a solid block of material, wrapped with a hand sewn leather sleeve, and made in the USA this is an excellent purchase. Available for pre-order here.