Classic Steel Loop Cap – Leak-Proof, Dishwasher-Safe, BPA-Free – Brushed Stainless

Narrow mouth Klean Kanteen and Hydro Flask bottles are my favorite water bottles and have been for years. The plastic caps they both come with are interchangeable (usually, tolerances can vary a little) and they work fine and are well designed but these all steel caps are way better. Hydro flask used to make the best all steel option but it appears they stopped making them, so this is now the best and only all steel cap I’m aware of. There’s the Klean Kanteen version with bamboo on top but it’s not as robust or as solid as this one. These all steel caps are great because they add a little extra insulation for when that matters (hot/cold) and eliminate the ever increasing plastic exposure in water bottles. Also, these solid one piece caps are much easier to clean since there’s no crevices to deal with which gives bacteria a nice little home to grow and smell. Pro tip on water bottles btw, don’t put anything in them but water and they won’t get gross and smelly ;)

Fits perfect for my Kleen canteen . Drinks doesnt spill . Great product

I was wanting the older top but this newer one is more compact & all metal. Now I like the new one better.

I have bought (and accidentally lost) several of these stainless steel caps. I'm trying hard to get plastic out of my life as much as possible, so this cap is a great alternative to the original plastic cap that comes with the classic Kanteen bottles. These caps also fit some children's water bottles.

Love this cap! Moved from a Hydroflask to a stainless steel finish Klean Kanteen because coloured coatings on water bottles always ends up flaking off in the dishwasher, and water somehow always made its way INTO the plastic hydroflask lid during the wash cycle (I could hear it sloshing about inside the lid), and dripped out slowly during the day, getting everything wet. This cap not only removes all plastic from the equation (yay), but is also completely impervious to water. I just wish they made a full stainless steel cap for the wide-mouth kanteen.

Great cap for my Klean Kanteen. No plastic.

Seems to work so far. I like the sport cap, but then it leaks.

This was for my niece and she raved about it.

Bouchon fait pour les allergiques au plastique. Il est cher mais la qualité est là ! Joli, léger, solide et facilement nettoyable (tout en arrondis).

I have a Aer sling, and my bottle only just fits in. It’s a squeeze. But now with this new lid it fits. And also there’s no rattle from a dangling loop (like the bamboo version I was considering). And I can still attach the bottle via the carabiner to the outside of the bag. The shop I ordered this from posted the item on the same day as I ordered (Sunday) and it arrived Monday morning. Thats fast. Nice one.

Works great with the kleen canteens.

Good cap. Low profile & sturdy.

This lid fit my Kleen Kanteens perfectly and reduced our use of the plastic ones we had, I only wish the top handle wasn’t so small and had softer edges where the fingers could easily get through.