The heritage White Butterfly Thermos Bottle, part of our Rosie the Riveter collection, unites sleek style and durable functionality. It is a stainless steel update of the vintage thermos bottles from the 1960s and 70s. The patented Thermos vacuum insulation technology provides maximum temperature retention and keeps liquids hot for 12 hours or cold for 24 hours. With a durable stainless steel interior and exterior, the bottle will remain cool to the touch with hot liquids and sweat-proof with cold liquids. The compact design is lightweight for easy portability and the twist and pour stopper lets you pour without removing the entire stopper. The lid can also be used as a cup.