If you have miss placed the lid to your Klean Kanteen or you just want additional drinking options, opt for a Klean Kanteen replacement cap. Interchangable between bottle sizes and made with polypropylene 5 or stainless steel, you have many options for one handed drinking, lowprofile designs, or adapters and Sippy spouts from Avent for your little ones.
Stainless = kleaner cap than plastic cap
I bought a stainless cap b/c it's easier to keep clean than the black plastic ones. Considering how long the bottle sits in my car after long trips sometimes (and I know I'm not the only one guilty of this), easier to clean = better. There is a little gasket at the top that I remove with a butter knife when I wash it. As of this review I don't see "Stainless Loop Cap" as an option on the Altrec webpage, but they will probably restock soon. And the "Stainless Loop Caps" are pretty easy to find on lots of places on the web.
1-piece cap = great!
My Klean Kanteens originally came with a 2-piece plastic/stainless steel loop top caps. I do not like the 2-piece caps as they often retain whatever fluid I have in the bottle if the gets tipped or excessively jostled during transport. I replaced all my Klean Kanteen caps with the 1-piece loop top cap. Ahhhh... Problem solved! The 1-piece loop top cap is also lower profile than the original 2-piece loop top cap.
Works well
I liked being able to switch types of caps on my water bottles depending on how we are using them.
