Leakproof and Adventure Ready
Not all tumblers are the same. Take our Bison 22 oz. tumbler for example: we used some of the thickest stainless steel on the market to build it because we wanted a strong, drop-resistant tumbler that you could use for years. Vacuum-insulated construction keeps liquids cold for 12 hours and hot for up to 6. We finished it with a leak-proof lid and powder-coated exterior for a steady grip that won’t chip or fade. Load it up with Operation Coffee for temperature control that travels with you.