Klean Kanteen Stainless Loop Cap

I purchased several stainless steel caps. The adhesive from the labels wouldn't come off, so I soaked them in soapy water. The expensive lids now have water trapped inside where bacteria can breed. I can't get the water out; the caps are unsafe to use, and I'm out the money.

I ordered these as replacements to the plastic lids that came with my kanteens. They came with a "Made in China" sticker on them, so I soaked them in the sink to get the stickers off. They wanted to float, so I had to put something on them to hold them down in the water. A couple of hours later (I got distracted!), I picked them up to scrape off the stickers, and what do I hear but sloshing water... the lids had taken in water, but there was no way to open them up and get it out. All I could think was that the soapy water would be slowly leaking into my drinking water. So... it was back to the plastic lids Klean Kanteen Loop Cap/Polypro for us! (BTW, HealthEGoods was very helpful about returning them).

The stainless steel inner part of the cap separated from the plastic top loop part of the cap, it needs some sort of adhesive to join them together which I might do myself. So don't think you can clip a full 40oz. klean canteen to a carbiner and then to your backpack with one of the Stainless Loop Caps because you will drop the bottle eventually if you are trekking some where or being extreme or intense. Also the worst part is that in order to prevent the bottle from leaking with this cap, you have to tighten the cap so much that the leverage of the threads of the bottle pull the cap apart, very frustrating.

I joke that I'm going to singlehandedly ruin the environment by buying new caps, trying to find one that doesn't leak. I have the steel loop cap and it leaks probably about 50% of the time. Somehow the water always finds a way to seek out any electronics in my bag. Maybe some teflon tape will fix it?

After reading some negative reviews about the steel cap, I ordered my bottle with the poly cap instead. I was quickly unsatisfied with the poly cap because it retains the smell of whatever soap you used to wash it. I then ordered the steel cap and I found that it was far superior.

Not only does the steel cap wash cleanly without any residue or leftover smell, but it actually covers the entire lip of the bottle opening. The poly cap does not and it leaves this part exposed. This is important because this is where your lips are actually touching when you drink from the bottle.

I only hand-wash my steel cap, so I haven't had any of the water-retention problems that I've read about in other reviews.

If you ever put this cap in the dishwasher, or submerge in water for a few hours, the water leaks into the cap and has no way to clean it out. They need to recall this cap, as potentially toxic liquid can stay inside the lid, and leaks into your bottle. It is too bad, because otherwise, the wide cap is really easy to open and close.

I ordered this product directly from Klean Kanteen. After a couple months of use, I noted water in the cap. I tossed all of them (4)and replaced them with the plastic ones which came with the bottles originally. Defeats the purpose (of choosing steel over plastic) but we like the loop on top for a carabiner and I am concerned about water remaining in the lid. Have emailed Klean Kanteen directly...twice...no response.
Otherwise love the bottles!

Paid extra to get 2 of these klean kanteen bottle tops and already one of them has come apart. The plastic separated from the stainless steel. they were a little pricey and I ended up using the cheaper plastic tops which seem to be more durable...very disappointing....

The metal part of the cap disconnected from the plastic top within days of purchase. This break revealed a huge hollow place where other reviewers mentioned old water collecting. After much fiddling, I could not put the two pieces back together. Now the only way to keep water in the bottle is to place the plastic ring around the sharp edge of the metal piece of the cap and screw it down. So very sad.

In theory I like the idea of a metal cap that prevents contact between the water and the plastic, I've had a terrible experience with the stainless loop cap. I have the 40oz bottle and apparently the adhesive cannot handle the weight--the loop actually separated from the rest of the cap, sending my water bottle crashing onto concrete, damaging the bottle in the process. I ordered a second one, stopped carrying it by the loop all the time, but it still came separated. I'm using the poly loop now and haven't had this problem.