This 450ml (15.2oz) reusable coffee mug is built for the ultimate caffeine hit. Supersized, it is perfect for those large coffee’s you need to take on-the-go. Featuring Cheeki? brand new Copper Lock Technology and triple wall vacuum insulation this coffee mug will keep your coffee perfectly hot for up to 8 hours or your iced coffee cold for up to12 hours. It’s on trend, one of a kind advanced technology features a leak-proof pop-up lid enabling for 360 degrees ease of drinking. It? soft rubber base provides extra strength and durability, making it perfect for prams, and most cup holders in the car and at the gym.