Overview
Insulated, flexible, and built to last.
Bike rides along the beach or snowshoeing in the backcountry — it's easy to stay hydrated on the go with our Wide Mouth Flex Cap. Designed with stainless steel pivots and a flexible strap, this cap moves when you do. Plus, it’s made with Honeycomb Insulation™ to keep drinks cold up to 24 hours or hot up to 12 — no matter what the weather’s doing outside.
Product Benefits
- Compatible with all Wide Mouth bottles
- Honeycomb Insulation™ helps keep cold drinks cold and hot drinks hot
- Durable, stainless steel pivots allow the strap to move easily
- BPA-Free and Phthalate-Free
- Lifetime Warranty
Awards
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Overview & Specs
Overview
Insulated, flexible, and built to last.
Bike rides along the beach or snowshoeing in the backcountry — it's easy to stay hydrated on the go with our Wide Mouth Flex Cap. Designed with stainless steel pivots and a flexible strap, this cap moves when you do. Plus, it’s made with Honeycomb Insulation™ to keep drinks cold up to 24 hours or hot up to 12 — no matter what the weather’s doing outside.
Product Benefits
- Compatible with all Wide Mouth bottles
- Honeycomb Insulation™ helps keep cold drinks cold and hot drinks hot
- Durable, stainless steel pivots allow the strap to move easily
- BPA-Free and Phthalate-Free
- Lifetime Warranty
Awards
Reviews/Q&A
Reviews
Q & A
- Wide Mouth Flex Cap is rated out of 5 by 138.Rated 5 out of 5 by ardorearte from It Fits I am not really sure what to say regarding the cap. I have had my HydroFlask bottle since 2013 so it is pretty darn sturdy (considering the number of times I have dropped it on concrete or on the trail). It rolled out of my vehicle one day, hit the asphalt and cracked the lid - the bottle is fine though. So I purchased this lid and yeah, it fits. Yippee!Date published: 2020-03-19Rated 5 out of 5 by Beckah from Question Are these lids now dishwasher safe? I saw the new wide mouth bottles are now dishwasher safe?Date published: 2020-01-21Rated 5 out of 5 by My3jboyz from Keep drinks cold for a long time This wide mouth flex cap-bottle is awesome. I have had to fight my husband cause he has claimed this bottle as his. Great made. Keeps drinks cold for a long time. Great for taking on a trip or just to the gym.Date published: 2020-01-13Rated 5 out of 5 by Charley193 from ???? Does this lid fit 20 ounce wide mouth coffee bottleDate published: 2020-01-10Rated 5 out of 5 by MonicaL2903 from My Whole Family Loves These! I absolutely love my Hydroflask! It’s the best out there! My sons both have one, my daughter has one and now I as well. It keeps my water icy cold all day and it’s super durable. It also keeps coffee and tea nice and hot for hours. I absolutely recommend it and will be getting one for the hubby real soon!Date published: 2020-01-08Rated 5 out of 5 by hbalc3 from Exactly What I Wanted My Hydro Flask was given to me second hand with a flip-straw lid. I am not big on straws or those types of lids and to my satisfaction Hydro Flask sold lids separately. I bought the regular screw top for something sturdy, leek proof, and insulating. It works great!Date published: 2019-11-26Rated 5 out of 5 by ava2478 from no leaks,great color,good for sports i just bought this for my lemon hydro flask. the color looks so good with lemon because i bought the watermelon cap. it use to always leak in a bin at vollyball now there is never a drop of water at the bottom of the binDate published: 2019-11-22Rated 5 out of 5 by michellef from Sturdy and keeps its seal Lid feels like its made well and one of the things that stands out most is that it keeps its seal. With other waterbottle lids they constantly start getting mold or the rubber seal completely comes out. That's not the case with these lids. Also, love the handle!Date published: 2019-11-21Rated 5 out of 5 by Btrlover from Amazing I got this a month ago and I love this water bottle and it kept water extremely cold and hot. I love the water bottle so much. I had so many people come up to me and ask where I got. Of course I told them.Date published: 2019-10-27Rated 5 out of 5 by joanne0000 from great fit I lost the original cap to my hydro flask somehow? I was bummed and wondered if I bought another one, would it be a tight fit and not leak? any wide mouth lid should fit any wide mouth bottle, right? I am happy to say it fits perfect and there are no leaks!Date published: 2019-10-25Rated 5 out of 5 by Krystalhal from Excellent sealant I don’t prefer using straw, so I love this cap! Seals extremely well—no leaks! I like the handle on top too—flexible and very study. The lid is also insulated so it doesn’t just leave the job to the canister to do the job. I’ve had to be careful when I put hot tea in cos it stays hot for so long! You definitely get what you pay for.Date published: 2019-10-24Rated 5 out of 5 by Sbunny1986 from Perfect leakproof This cap is much better than the flip cap; which leaked. With this cap I have to remove the lid each time to take a drink from the bottle. Five stars would be a HydroFlask flip cap lid that does not leak. I would recommend this lid.Date published: 2019-10-18Rated 5 out of 5 by sully1754 from Keeps hot things hot and cold things cold!!!! I really like the wide mouth on this thermo flask. While it's not good while driving, it's the best while at my desk. It has helped me consume more water daily. It really does keep hot things hot and cold things cold!! Very solid construction. I did read it is best not to put it in the dishwasher so be mindful of that.Date published: 2019-10-14Rated 5 out of 5 by Steph0 from The best Love this bottle. I have to say I own a lot of items from Hydroflask and I love them all. This one keeps my tea warm all morning at work, and keeps water cold all day on weekend adventures. The only thing that could be improved upon is they do have a propensity to dent if dropped onto any hard surface - i like to think it gives them some added character.Date published: 2019-10-12Rated 5 out of 5 by abashford from Love the cap! Love the wide mouth flex cap! Fits perfectly on my bottle, and keeps my hot drinks hot and my cold drinks cold. Bonus points for the build-in handle, perfect for clipping onto my bag when I'm on the go.Date published: 2019-10-11Rated 5 out of 5 by Renee2018 from Great item The wide mouth flex cap is a great item, it fit on my bottle nicely and does not accidentally pop open nor does it leak! I think I may buy a few more! I like how it’s not hard so if you accidentally bump it with your teeth it doesn’t hurtDate published: 2019-10-11Rated 5 out of 5 by MarshaK from Great Lid! I have one Hydro Flask and another brand of metal water bottle. The lid on the other brand broke. Luckily, the Hydro Flask lid I have fits, so I ordered one for the other bottle. I like that the lid has a built in handle and that it is so durable!Date published: 2019-10-10Rated 5 out of 5 by janns01 from Hydroflask Hydroflask are my go to drink container for keeping water cold in the hot sun. You can go wrong with Hydroflask and they last for a very long time. This is my second hydroflask and I really like the handle on the lid which makes carrying it around very easy. This is also a nice size because it fits in most car cup holders.Date published: 2019-10-10Rated 5 out of 5 by AngelBee from Can’t live without! I absolutely love my wide mouth flex cap Hydroflask! It goes with me everywhere. The easy to grab flex cap makes it a breeze to pull out of the backpack or my diaper bag. It also works well clipped to my backpack handle with a carabiner. It keeps my water ice cold all day while out running errands or on adventures with the family.Date published: 2019-10-08Rated 5 out of 5 by Meme1117 from Keeps cold! I’ve noticed that this cup keeps my ice water colder than usual. And I love it! I wish the bottle was a bit bigger but it’s fine! It keeps everything I put in it cold overnight and even keeps stuff hot. I love this cup!Date published: 2019-10-07
Hello. I wonder whether this mouth cap also fit in 12oz insulated kids wide mouth bottle. Please let me know. Thank you.
Yes. It will fit all of our Wide Mouth Flasks.Date published: 2020-03-17can this fit on a 22 oz. regular mouth?
This product only fits our Wide Mouth Flasks: Kids 12 oz; Coffee Flasks 12 oz, 16 oz, & 20 oz; and our Hydration Flasks 20 oz, 32 oz, 40 oz, and 64 oz.Date published: 2020-01-23Will this lid fit the kid’s 12 oz bottle that comes with a straw lid?
YesDate published: 2019-10-29Does this lid fit a 24 oz wide mouth?
YesDate published: 2019-10-29 If used on a 16 oz HydroFlask widemouth coffee flask, will this cap be leak-proof?
None of our caps are advertised as leak proof, but this cap is the best for travel. As long as the cap is on properly and the gasket is intact, the cap should not leak.Date published: 2019-10-27Is my cap handle suppose to not be moveable because my handle was not moving which made me drop my 40 oz. hydro flask. Which in turn slightly dent the bottom and crack the paint.
It should move, yes. We'd be happy to replace your cap for you under our Lifetime Warranty. You can fill out a warranty claim here: (http://www.hydroflask.com/warranty/)Date published: 2019-10-27Will the wide mouth flex cap fit the kids wide mouth, and will it leak if turned upside down with the kids flask? Thank you.
The wide mouth flex cap will fit the 12oz wide mouth kid’s flask. Our lids are not advertised as leak proof. If you turn the flask upside down with the flex cap on it, it should not leak as long as the gasket is in place, and it is screwed on properly.Date published: 2019-10-25Can you put this on a 20 oz. Wide-Mouth Water Bottle?
Yes, all of our Wide Mouth caps will fit our Wide Mouth bottles.Date published: 2019-06-01
