Description:Elegant slim design 500ml stainless steel vacuum double wall drink bottle with filter. Featuring an eco-friendly sustainably sourced natural bamboo outer wall. It has a touch LED temperature display lid which will show the inner temperature with a range of 9c to 98c. It is leak-proof and can keep hot for at least 4hrs - 8hrs and cold for 24hrs. The inner wall is 304 food grade stainless and 100% BPA free. This bottle is small enough to carry around, they can fit into totes, bag packs, and most car cup holders, it has large capacity, suitable for carrying a variety of coffee, hot water and ice water to meet your daily drinking needs, is a great promotional product to display your logo and get your message across. Not dishwasher or microwave safe. Handwashing is recommended.