Insulated double walled design suitable for hot and cold drinks. Thermal design keeps liquids cold for up to 24 hours or warm for up to 12 hours.. Material: Stainless Steel, Polypropylene and Silicone. Insulated double walled design. Food Safe: Yes. Dishwasher Safe: No. Reusable: Yes. BPA Free: Yes. Volume: 500ml. Dimensions: Height 26.5cm Width 7cm Depth 7cm