no BPA
18/8 stainless
durable

Caps: Kanteen Classic

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Klean Kanteen® Classic: Stainless Flat Cap

For the purist looking for a sleek, low-profile look and a 100% stainless environment, the Stainless Flat Cap is the way to go.

Made using BPA-free polypropylene (pp#5) on the outside, the inner threaded part of the cap is 18/8, food-grade stainless steel so your drinks never touch plastic. It's the same high quality, stainless steel we use to make our bottles, so it�s totally free of BPA and other toxins.