Stop your take-away coffee waste! We have joined up with Frank Green to introduce a reusable coffee cup for a more sustainable future.. As well as looking effortlessly cool, these cups are clever - using an ergonomic one-handed, push button operation which opens and closes the SmartCup's spill-resistant lid.. These ceramic stainless steel cups have a vacuum insulated, double-wall construction with a ceramic inner layer that will keep your drink hot for up to 10 hours. Plus they are shatterproof thanks to their stainless steel exterior. Lid only is dishwasher safe.. Featuring our Volcano logo so everyone knows who your favourite coffee roasters is.