The Klean Kanteen Eco Insulated Tumbler 16oz will soon become your favorite to-go tumbler cup. Constructed from 90% post-consumer recycled 18/8 food grade stainless steel, its double-wall Climate Lock vacuum insulation helps keep contents hot up to 4 hours or cold for up to 20. This item is BPA-free and features a chip-resistant Klean Coat powder coat finish that is easy to clean. Its slim design fits most standard cup holders. Its electropolished interior does not retain or impart flavors. Recommended hand wash only. 16oz.