BOTTLE BOTTLE Flip Top Lid Replacement Cap for Hydro Flask 12 OZ, 18 OZ, 21 OZ, 24OZ Water Bottle Portable Carrying Loop Handle HydroFlask Lid

i am picky. about everything. especially a bottle that I carry with me all day long (I live in AZ and water is life!). This top was the only design I could find that accomplished the requirements I had:1) fast, one-handed opening2) large enough spout to pour water fast (not have to suck it out)3) easy to clean4) durable5) sanitary cover for the parts you put your lips to#1-2 were obvious when I ordered it and it satisfied after use without any disappointment#3-4 we not clear to me until after I used it for a while. and let me tell you, they nailed it. all the nooks an crannies in the assembly are simple and it doesnt have weird inside that will trap mold. also I just pop it in the top rack pof the dishwasher from time to time. it cleans very easily by hand as well.regarding the hinge, its a simple hinge that holds tension by stretching a little rubber band thingy. I thought that would be the major flaw. but I use this all day, every day, and it is showing no signs of wear. I am glad to see that companies still actually strive to make a good design and then follow through on execution.btw, it has never leaked a drop.

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).

This fits my water bottle and doesn't leak! It is also 100% cleanable. The little silicone "nipple" covering the component that fills the drinking hole when the lid is closed is removable, which allows for 100% cleaning and no mold build up. Critical for me as I get so grossed out by water bottles that don't allow full cleaning ability. I've reodered a second one for my other water bottle, too.

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.

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!