Portable thermos water bottle with an interior made of 100% stainless steel, double walls, and a high-durability casing that keeps the temperature of the contents stable for hours. The stainless steel ensures high durability over time and completely hygienic use without the toxic substances found in common plastic bottles. It does not absorb flavors and odors. It features a screw-on vacuum cap. Ergonomic design with a hook-keychain and handle for easy transport. Very easy to wash.