A good tumbler is one of those things that earns its keep across every context – morning coffee on the commute, a cold drink at a festival, wine around the campfire. The range here covers everything from Falcon Enamelware's cheerful porcelain-coated steel classics to precision-machined double-wall stainless options from VSSL and High Camp Flasks, Snow Peak's Japanese-crafted Shimo and Stanley's stackable and flip-straw formats. Different price points, different aesthetics, same basic idea: something worth drinking from.