6 hours hot!
Your Chilly's Tumbler will keep water, tea or coffee hot for 6 hours. This is based on filling it with water straight from the kettle and keeping the lid of the Tumbler on.
For the best results, pour very hot water into the Tumbler for about a minute with the lid on to warm the inside. Once warm, tip out this hot water and then fill the Tumbler to the top with your beverage of choice.