These 800ml jumbo Thermos Cups were a massive hit at our Summer Mixer in July! Boasting double-wall insulation, a comfortable handle, secure sip lid and also a Tritan™ straw - known for its durability - they keep hot things hot, and cold things cold... for a seriously long time! In the hottest spell of the British summer, Sam left his jam packed with ice all afternoon and overnight in the car park of The Addington in direct sunlight, and it had hardly melted by the time he returned the following morning!