Materials:

• 18/8 food grade stainless steel - BPA Free (18% chromium and 8% nickel)
• Caps made from safe, BPA-free polypropylene (pp#5): The Wide Loop and TKWide Loop caps are PP #5 on the outside, but an all-stainless interior, so drink contents never touch the plastic. 
• TkCanisters have a silicone liner on the underside of their lids, so no plastic is touching the contents.

Benefits:

• TK Closure internal thread design increases thermal performance and compatible with TKWide caps
• Climate Lock keeps contents hot up to 14 hours or iced up to 47 hours applying and those that use our water bottles
• Dishwasher safe
• Because our Kanteens are constructed of 18/8 food grade stainless steel, there is no issue with alcohol, acidic beverages, such as fruit juice, or dairy products

Klean Kanteen:

⭐️ "Our materials and products are tested before, during, and after the manufacturing process to ensure the quality that we require. This is a link to our third-party certification"

⭐️ BPA, lead, phthalate and heavy metal free

"Klean Kanteen products are designed in Chico, California and responsibly made in China. Currently, there aren’t qualified stainless steel water bottle manufacturers in the US – most brands are made in either China or India. We are proud to have a long relationship with these facilities and their staff and consider them part of our Klean Kanteen family"