The bottles are constructed from durable high-grade stainless steel, for both the inside and outside walls. This preserves the flavour and freshness of the drink, without any tainting.The Bottles have a wide, drip-free mouth opening for ice cube insertion and easy drinking.The insulate properties of the drinks bottle enable hot liquids to stay hot for approximately 12 hours and iced cold drinks to remain cold for approximately 24 hours, regardless of the outside temperatureThe airtight screw-top lid prevents accidental spills and the vacuum insulation meant the drinks bottle will remain condensation free. The capacity of the drinks bottle is 500ml.Heigt: 26cmOfficial Oxford University Merchandise