Quench your thirst on the go with our ThermoFlask 40oz ThermoTumbler Two Pack.Keep your drinks cold for 24 hours with Temp-Lock technology, sip easily with reusable straws, and stay leak-proof with a twist-on lid. Made of food-grade stainless steel, it's durable and safe for any adventure. Plus, it's easy to carry with an ergonomic handle and no-slip bumper. With cupholder compatibility and two straws (standard and jumbo), it's the perfect hydration solution.