Insulated 20 oz Coffee tumbler: Double-wall vacuum insulation technology, keep drinks hot for over 6 hours and cold for around 24 hours, sweat proof, no condensation Premium Material: Made from high quality 18/8 304 food grade stainless steel, lead free and durable, never rust, easy to wash and unbreakable BPA Free Sliding Lid, Spill Proof: Silicone gasket seals, drinking hole on the top for easy sipping, straw friendly Car Cup Holder Friendly: Great for on the go, camping, gyms, outdoor activity Superior Powder Coated: Multi-color option, durable finish, no scratching, no peeling or fading, easy grip, long lasting