The Klean Kanteen Insulated Tumbler is a premium, durable, and portable to‑go cup made from 18/8 food‑grade stainless steel with a chip‑resistant Klean Coat™ powder finish and an electropolished interior that won’t retain or impart flavors. Featuring double‑wall Climate Lock™ vacuum insulation, it keeps drinks hot for up to 6 hours or cold for up to 24 hours, making it perfect for coffee, tea, or iced beverages on the go. Its slim, tapered design fits most standard cup holders, while the included tumbler lid allows for easy, splash‑proof sipping. BPA‑free, stylish, and built to last, this tumbler combines practicality with performance, though hand washing is recommended to maintain its quality.