Introducing our Stainless Steel Coffee Tumbler-robust, rustproof, and health-friendly, with no metallic aftertaste. The non-sweat, powder-coated outer layer keeps it dry and neat. Complete with a leakproof lid, BPA-free reusable straw, and a convenient drinking hole. The sliding lid with a rubber gasket ensures a tight fit, preventing leaks. The 20oz insulated tumbler, with vacuum double wall design, keeps drinks hot for up to 6 hours and cold for up to 24 hours. The bottom design offers a secure grip, and it fits most car cup holders for on-the-go convenience.