Klean Kanteen Classic Stainless Loop Cap

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, messenger 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 we use to make our bottles, so it's totally free of BPA and other toxins. -Handy attachment loop -No BPA, phthalates, lead or other toxins -Creates an all-stainless interior -Interchangeable with all Kanteen? Classic bottle sizes -Should be handwashed -Cap is leakproof