The technology of double wall vacuum insulated tumbler can keep beverages cold for up to 24 hours and keep hot for at least 6 hours. 100% stainless steel vacuum tumbler, grip- friendly design to keep hydrated wherever life takes you. Transparent Lid- Weather-proof clear lid to keep an eye on the status of your remaining drink.
I love this cup because it prevents people from using plastic bottles! Keeps my ocean clean!