BOTTLE BOTTLE Flip Top Lid Replacement Cap for Insulated Water Bottle with mouth diameter 1.69 in. /4.3 cm

I've been using Klean Kanteens for 12 years, and suffering with their inferior caps (either the screw-on version, or the sport top - which is leak-proof, but the mouthpiece is exposed all the time!). I even wrote to Klean Kanteen many years ago and asked if they would make a flip-top cap (they wrote back and told me it was "in development" - like five years ago). I really didn't want to switch to a different brand of bottles, because we have a family's worth of KK's in various sizes, and because the bottles themselves are fantastic. But I REALLY wanted a flip-top cap. Voila! My bestie told me about this beauty and I immediately ordered one. My only complaint is that it doesn't lock (Nalgene On-the-Fly, I'm lookin' at you!!!). However, I've been using it for a few weeks now and it hasn't popped open accidentally yet. That said, I'm careful never to place it in a bag where there are electronics or other water-sensitive items. To wash, I put the cap in the top rack of the dishwasher. I open it and then place the mouth opening, upside-down, over one of the spires of the rack. It stays in place throughout the cycle, no water pools anywhere in the cap, and even the area under the silicone gasket dries quickly. EASY-PEASY makes this mama HAPPY! I wish I could give this 9 stars (10 if it locked!). I'm definitely going to buy more for the rest of the family so we can all enjoy these fabulous, easy-to-keep-clean caps!

The cap functions as you'd expect. Pouring water slowly from the cap doesn't cause it to trail for me along it's side, which is great. If I could improve the cap, I'd add a feature to lock it from opening. Some minor complaints are that I wish the button stuck out a little more (or was bigger) so it'd be easier to press and you need to press down on the cap "relatively hard" for it to lock closed; but it's comparable to other button to open caps I have. Also, if you intentionally try to press down the lid slowly to not fully be closed that it's possible (where it can accidentally open easily since not fully closed; but closing it normally wouldn't cause this to happen realistically as you'd need to press the cap relatively hard to have it be closed). I can't speak for durability yet, but one note is that the mechanism that makes the cap flip out / open automatically is a silicone ring. So if it somehow breaks, even if you had a replacement silicone ring, you wouldn't be able to install it as the metal rod at the hinge is pretty securely in place. The carrying loop seems durable enough to use to carry the bottle. But it's plastic, so it can break given a hard enough impact given it's relative thinness. I haven't found a comparable alternative cap for the type of bottle this cap fits, so it's the best quick access cap out there I could find. Overall, I'd recommend the cap if you want a quick access cap, are okay with no ability to lock the cap from accidental button presses, are okay with a 1.7mm x 0.65mm button, and don't mind pressing relatively hard to close the cap securely (so it doesn't accidentally half close & flip open).

I broke the top to my generic 16 oz stainless water bottle (pics below — my old broken lid is on the counter as a comparison to what i was looking for when i came here) and found this replacement. It fits! Size was as advertised, and i actually like this mouth-seal better than the old one (3rd and 4th pic show the seal). The seal has a finger-grab tip that makes removing it for cleaning super easy! .. I am more happy about that than i probably should be, by with the original lid i had to use a butter-knife to pry it out — not so difficult with this one. Win. Good job.

I am new to Hydroflask. I got bit by the must have a Hydroflask water bottle, as I'm in my car all day so drink plenty of water. Loving my Hydroflask so far, though I think it's more stylish than actually BETTER? than a Coleman for example which speaking of drinking caps, is the absolute winner!! In any case so Hydroflask, you either get the crappy sports cap..or suck out of a straw or keep unscrewing the cap..which is not acceptable while I drive. Long story short this Bottlebottle cap seems ingenious for Hydroflask, and I hear it works with other brands too. It does NOT leak....I don't really notice it's not insulated, easy to clean..no gunk,..my water stays cold for hours and hours. I took off one star cause mine came without the O ring that makes the lid spring back and stay open. The lid still works, though I will be exchanging it for a new one that hopefully HAS the o ring. Speaking of...seems the o ring may not last a long time from reviews I read,. I hope THEY can improve that....otherwise this is a SUPER idea for Hydroflask...it fits perfectly...and even without the O ring it still works great, other than I have to manually open the cap after I click the button. It would gain a star if it could be insulated....just in case you need that extra confidence. Overall though a GREAT idea....and wish they could improve that O ring..haha in my case at least INCLUDE one...

I bought this in 2020 and it's still going strong! It beats around in my tote bag and it has never leaked.

I've used this daily for ~2 months for refrigerated-cold water with a little ice (not near-frozen ice cold). it works great. giving it 5 stars in spite of a couple minor shortcomings, because it's the only decent flip-top strawless option like this I found. my only complaint is the 'feel' of the handle & button: - the handle works fine - it is just a little 'plasticky' with slight injector pin marks & mold parting lines so it's not a pleasure to hold like the original top. - similarly, the open button works fine, but it's not super-nice to press because it's smallish and the edges of the surrounding plastic are not rounded. in my experience, it's leak proof. I haven't had it spontaneously open as another reviewer mentioned. I have opened & closed it countless times and the hinge seems fine. I've dropped it a few times with no problem.

Got this so that I could drink from my Hydro Flask while driving as I didn't prefer to use a straw. The fit was great and I like the low profile of the handle since I could tuck it out of the way. I felt like it was also the perfect opening size to get the right amount of flow. The bottle did leak 2x so far. If you're not careful to make sure the top actually clicked closed, then it looks closed but isn't all the way. This happened once and water did spill out. The 2nd time, the bottle fell and I guess it was impactful enough that the top sprang open and out gushed water. So if you're careful with the top and don't throw your bottle around, I highly recommend the top.

We have many Hydro Flasks in our household and love them, but the one thing I don't like is the standard lid that comes with them. I have replaced most of the wide mouth lids with chug style lid. I recently got my wife a new standard mouth Trail series and decided to try this flip lid. It works well and I really like that I can pop it open with just a push of the button. So far, it's been leak proof. The only thing I wish it had was a lock for the button to pop open the lid, as added insurance when you through the bottle in a backpack. The button is pretty flushed with the rest of the lid and does require it be pushed in quite a bit to pop open, so hopefully, it'll keep it from popping open accidentally.

Fits good. It is practical.

This product greatly facilitates drinking, particularly when you are in a hurry or on the move. I highly recommend it.

Was looking for a top for hydro flask bottle that was not a straw. This is perfect. Easy to clean and no leaking. Works perfectly. Would buy again.

とても便利です。運転時に飲みやすいものを探していたので、助かりました！

great product. I use it at night, and it keeps my drink cold and leak proof. Much easier to use with a flip up lid in the dark. veryimpressed.