IS TRAVEL TUMBLER INSULATED? 15 January 2020 13:31 Updated Follow Yes, our Travel Tumbler is insulated, keeps drinks hot for up to 6 hours and ice-cold for up to 24. Related articles IS TRAVEL TUMBLER LEAKPROOF? ARE ALL 24BOTTLES INSULATED? HOW CAN I CLEAN MY SIP&GO LID? HOW DO YOU ENSURE THE QUALITY OF YOUR PRODUCTS? HOW CAN I CLEAN MY TRAVEL TUMBLER?