Vacuum Insulated: The Voyager travel mug tumbler is perfect for taking hot or cold beverages on the go. Designed with double-walled, vacuum-sealed insulation and a copper-coated interior, it will keep your drink at its ideal temperature for hours. 1 Lid and 2 Straws Included: The Voyager Tumbler comes with our twist-on, leak-proof clear flip lid that’s perfect for drinks of any temperature as well as two reusable straws. Fits Most Cup Holders: The Voyager’s unique shape makes it the perfect reusable travel mug as it fits in most cars’ cup holders. Pat/Pat Pend.