Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle

This is exactly how they original lids were designed, then they went to plastic for almost all models.The plastic ones have a thin flat gasket and not an o-ring. It's super hard to get it to come out for cleaning. The plastic ones also are made of two parts that are snapped together in the factory. This is NOT a water-tight seal. So gunk gets inside and is a potential health problem. I drilled a hole in the plastic one and gray goo came out. The entire design of the plastic lids is faulty as cleaning is almost impossible.This, though, is all stainless steel. No seams or ways for water to get inside.It also has a standard o-ring that takes a second to remove and wash. This is also a normal industry-standard size.This is not a knock-off, but made by Hydro Flask/what came on the original model years ago and now is a replacement part. I think they sell one or two models with the stainless steel lid and everything else is plastic.This is a mandatory upgrade that will make your flask last 10-20 years without health issues.

I am not sure why this doesn't come standard. I am sure it probably has something to do with adding revenue, but it is so much better than the cap that comes with the bottle. I like this because it makes it easy to drink one handed. I am a HS principal, and I carry my Hydroflask around on duty with me. This make is easy to get a drink without having to find a place to drop my laptop and anything else I might be carrying with me. It cleans up well. It is not 100% leakproof. It will leak if you hold it upside down or shake it. Not huge amounts, but it does leak. I made the mistake of leaving it in my backpack on a flight to Europe last winter holiday. It sat in the overhead on its side for 8 hours. It leaked all over the overhead, and was sloshing around. My family was the only one that had luggage in that bin, so the only was the only looks I got.

Works well. Just as described.

Had bought my Hydro Flask years ago which came with a sports push/pall cap. Immediately after purchasing, I dropped the bottle and the lid would randomly leak. I had originally thought I bent the seal, but one day the entire push/pull came completely apart revealing the inside plastic had broken. Made me realize a replacement cap was possible.Decided to go with this standard lid. It feels durable and clean. A would do a few drop tests, but I am quite confident this will hold up!

Bought this for a 5 almost 6 year old to use with a kleen kanteen narrow mouth bottle. Pros - It fits the kleen kanteen bottle, looks very easy to clean (the red silicone can be pulled in and out for cleaning), and seems less awkward to drink from than the larger wide mouth spout.Cons: There is no way that I will be able to get her to open and close the straw without touching where she is going to to put her mouth. This is not a good solution for at school :(. it’s possible to do if you are really careful and only out the very tip in your mouth or if you your pointer finger but the likelihood of that happening is slim for a child. I bought this to replace the kleen kanteen sport cap because she used her fingers to open it and I didn’t like how it was always exposed. Due to this, I will sadly return it. Hydroflask could solve this issue by having a sanitary cover, making the spout longer, or possibly making the pull tab longerAnother potential con is that is leaks more than the wide mouth straw cap when the straw is not pushed down. Another reviewer had a video of it. This wouldn’t be an issue for her at this age but it might be an issue for other families.

I bought this because my current lid was leaking. A lot. So I'm really happy this one doesn't leak at all! I initially had some trouble putting it on the bottle for some reason, but after a couple of days I've had no issues with that. The straw was easy to trim to the right length, and I haven't had to use the second one yet.

I have been using my Klean Kanteen 40 oz water bottle for over 10 years. It's a great water bottle, but the lid never let the water flow freely. I just bought the same lid for my daughter's Hydroflask and noticed how well the water flowed. When I tried it out on my old Klean Kanteen, it fit perfectly and I ordered one for me. Fits great and flows freely like a good sport cap should. For the record, none of the sport cap lids I've tried are perfectly leak proof. They all leak a little bit if you turn them upside down. Happy drinking!

Lost my old lid and this was a perfect fit for my bottle! They seal tightly, preventing any leaks, which gives me peace of mind when I toss my bottle in my bag. The wide mouth makes it easy to fill and clean, and the lid itself is durable and well-designed. I love the convenient carry handle, making it easy to take on the go. These lids have definitely enhanced my Hydro Flask experience, and I couldn’t be happier with the quality. Good to know I can find replacements if I lose them!