If you want a 100% stainless environment inside your bottles but also need a functional attachment point, the Stainless Loop Cap is the perfect choice.
The handy attachment loop was designed with athletes and multi-taskers in mind and makes it easy to clip your Klean Kanteen® onto your backpack, climbing harness, bag or any other place you need quick easy access to your drink.
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 used to make Klean Kanteen bottles, so it's totally free of BPA and other toxins
Fits the Classic Range of Klean Kanteens.