With ceramic inner layer Premium stainless steel exterior Made of BPA-free and FDA and EU-approved materials Includes a patented and spill-resistant push-button lid Bringing drinks to work, picnics, or camping trips is easier with the 295ml Frank Green Ultimate Ceramic Reusable Cup. This shatterproof and triple-walled cup in marine blue has a unique ceramic inner layer to keep drinks flavourful. With a matching push-button lid for one-handed, spill-free drinking, this BPA-free cup also keeps beverages hot or cold longer.