Kinto Travel's double stainless steel walls with a vacuum in between prevent heat transfer. The foil layer covering the inner wall reflects the heat inwards and also stores heat and cold perfectly. Keeps drinks cold for 6 hours up to 8℃ and hot over 65℃. In addition to being easy to use, the material and composition support long-term use. The container is made of robust 18-8 stainless steel and does not rust easily. The surface of the coloured cups is powder-coated to prevent scratches. In addition, the smooth, electropolished inside is odour and stain resistant, so you stay clean and fresh. As there are no screws, the cap sits comfortably on your mouth and is designed to prevent ice cubes and hot drinks from spilling out too much, so you can drink comfortably until the last sip. The lid is leak-proof, so you don't have to worry about spilling your drink. The cap with seal is made of food-safe polypropylene and silicone. Dimensions (mm): 74 (diameter) x 197 (height with lid); 173 (height without lid).