320ml glass, reusable coffee cup with silicone sleeve and eco comfort lid made from a 50/50 blend of wheat fibre and polypropylene. Borosilicate glass is known for its durability and thermal shock resistance. Nominate your choice of silicone sleeve colour. Packed in matt black window box. For logo longevity hand washing is recommended. Eco Credentials: Reusable and sustainable through waste reduction.