Frank Green Ceramic Reusable Cups are a stylish and eco-friendly way to enjoy your favourite beverage on the go! The innovative combination of ceramic and stainless steel allows optimal beverage flavour, aroma and temperature control, to keep your drink warm or cool for longer. You’ll also love the unique Frank Green spill-proof straw lid. Cupholder compatible Triple-walled and vacuum insulated No residual flavour, even when going from coffee to juice to water Spill-resistant straw lid for easy sipping Ceramic inner layer gives the same pure aroma and taste benefits as drinking from a ceramic cup Shatterproof 304 stainless steel outer 475ml capacity Care Hand wash is recommended for the base, however, the lid is dishwasher safe.