Made from food grade materials with a rigid nylon base and flexible silicone walls. __ As it craftily folds completely flat for space-saving efficiency it's easy to fit in your backpack, but when the sides are raised it stays strong even when the cup is empty.__ Can be connected with a carabiner to the rest of your kit. Whether you're on a big trip or a family picnic, this mug is handy to have when you're making a cuppa perched on a mountainside.__ Built to withstand the toughest of trips, the functionality makes this malleable cup an ideal choice for first time youth campers, festival goers, DofE participants and Scouts expeditioners.__ Part of the colourful, vibrant Ellipse original cookware range, this mug will be ready to go no matter how far your adventure takes you.__Made from lightweight, durable plasticBPA freeDishwasher and microwave safeWithstands temperatures from -40 - 230°CWeight: 64gDimensions: 98 x 98 x 80mm_