Capacity: 500ml. High quality, durable, double-layer stainless steel. Drinks 24 hours cold and 18 hours hot. Rubbery feel for better grip. Airtight: leak-proof cap. Completely BPA free. Suitable for all types of drinks. Does not retain or emit any taste or odour. No condensation, will not ‘sweat’. Hand wash only. Not dishwasher or microwave safe. When not using the bottle for a while, we recommend storing it without closing the lid.