The Klean Kanteen TKWide 32oz – Loop Cap was created with versatility, portability, and performance in mind to create the best wide-mouth water bottle for sports, hydration, and the outdoors. Constructed from 18/8 food-grade stainless steel, its double-wall Climate Lock™ vacuum insulation helps keep contents hot for up to 22 hours or cold for up to 75 hours. Includes a leak-resistant vacuum insulated wide loop cap which creates a full stainless steel interior designed to increase thermal performance. This item is BPA-free and features a chip-resistant Klean Coat™ powder coat finish that is easy to clean. Its electropolished interior does not retain or impart flavors. Recommended hand wash only.