An ideal choice for people on the go, the Sipp Stainless Steel Travel Tumbler is built to last and loaded with features to make for a more enjoyable drinking experience. Thermos vacuum insulation technology virtually eliminates temperature change within the beverage container by creating an airless space between two stainless steel walls. It keeps beverages hot for 5 hours or cold for 9, making it a great choice for long days out and about or in the office. Constructed with double wall stainless steel, this 16-oz. travel tumbler is virtually durable, yet its sleek design is both eye catching and functional. It is also dishwasher safe for easy care and use. The gold-colored tumbler comes equipped with a leak-proof lid that operates with the push of a button. The lid is made of BPA-free Eastman Triton copolymer which resists staining and provides durability. And because of the double wall insulation, the stainless steel body stays cool to the touch with hot beverages and condensation-free with cold beverages.