Custom Operation Coffee Roasters Graphite 22 oz Bison Tumbler

  Durable and Perfect for Adventure - "Not all tumblers are created equal. Our Bison 22 oz. tumbler stands out with its premium stainless steel, making it a tough and drop-resistant option that will last for years. Its vacuum-insulated design keeps liquids cold for 12 hours and hot for up to 6, while the leak-proof lid and powder-coated exterior ensure a sturdy hold that won't chip or fade. Whether you're carrying craft beer, coffee, water, or any beverage of your choice, this tumbler provides on-the-go temperature control you can rely on." Bison Coolers