Hydro Flask Wide Flex Chug Cap
Details
- Item #HYFZ04C
- Material
- BPA-Free
- Compatibility
- all wide mouth bottles
- Manufacturer Warranty
- limited lifetime
- Activity
- run & training
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 470 ratings
Review Summary
Customer Images
Here's what customers have to say
The product is generally well-received, with customers praising its ease of use and convenience for drinking. Many appreciated the good customer service, with the company quickly replacing any defective or leaky caps. However, some customers experienced issues with the cap, such as it being difficult to remove or tighten properly, leading to leaks. A few felt the design could be improved to make the cap more user-friendly, especially for those with limited hand strength. Overall, the accessory seems to be popular, but some customers had concerns about the execution of the design.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageSeptember 1, 2025
Needed it for shakes
[This review was collected as part of a promotion.] Drinking shakes with any other lid is super annoying- this one is perfect!
Originally reviewed on hydroflask.com
August 27, 2025
Wish there were colors
[This review was collected as part of a promotion.] I like it but it does clash with the rest of the water bottle. I wish this came in colors.
Originally reviewed on hydroflask.com
August 27, 2025
I love the size of the opening
[This review was collected as part of a promotion.] I bought two of these to replace the caps on two ThermoFlask bottles. I hated the small opening on them so I took a chance that these Hydro Flask caps would fit. They do. So, if you want to upgrade your drinking experience, these are great!
Originally reviewed on hydroflask.com
August 14, 2025
Wide Mouth Flex Chug Cap
[This review was collected as part of a promotion.] Very happy with my purchase! My old lid was no longer working for me. Even though I cleaned it frequently, after 8 years it was gross. I love the new cap & was happy to be able to get a replacement without having to replace the whole bottle.
Originally reviewed on hydroflask.com
August 10, 2025
Chug Cap
[This review was collected as part of a promotion.] Makes it easy to get a drink if hands are dirty grab the bottle twist the chug cap strap and presto
Originally reviewed on hydroflask.com
August 4, 2025
New top needed
[This review was collected as part of a promotion.] I got my Hydro Flask as a gift a while ago as a gift, the original top wore out and you don’t have the exact replacement, but the wide mouth flex chug cap was the perfect replacement
Originally reviewed on hydroflask.com
August 3, 2025
Not what I suspected
[This review was collected as part of a promotion.] I was hoping the top was a little bit smaller. I swallowed am ice cube before realizing it. :( - I went back to using my lid that slides to the right to drink.
Originally reviewed on hydroflask.com
July 31, 2025
I want to love this cap
[This review was collected as part of a promotion.] Not sure if it’s just me, but I have issues getting the big part of the cap off. It’s either suctioned on there so tight I need a jar opener to loosen it, or when I go to open the smaller chug cap, the big one spins, too. It’s pretty annoying. I also wish they would have put a larger carry strap on the big part of the cap, so my bigger bottle is less cumbersome to carry. I’m not convinced this cap is as insulated as it could be, as my ice doesn’t seem to last as long as it should. The chug sip is perfect. But the rest of cap is pretty frustrating. I want to love it, but I can’t.
Originally reviewed on hydroflask.com
July 30, 2025
The best of both worlds
[This review was collected as part of a promotion.] You can fill the bottle easily by taking off the entire cap drinking from the upper cap. Makes it easy to drink when you’re moving around doing things without spilling anything I absolutely love it.
Originally reviewed on hydroflask.com
July 26, 2025
Leaks
[This review was collected as part of a promotion.] I have been using the same top for many years. I bought two and they both leak.
Originally reviewed on hydroflask.com
Do you have a question about this product?
January 30, 2023
Why can’t you use this cover with coffee? Does this mean you can’t wash it with warm water and soap?
Originally reviewed on hydroflask.com
January 13, 2023
Does this fit the 40 oz Wide Mouth
Originally reviewed on hydroflask.com
January 8, 2023
I have the 64 oz flask. You need to make an incorporated cup for it! Also, a rubber net outside, or even a side handle, would be nice. I can't hold it with 1 hand. The outside is too slippery as well as wide. But mainly a cup.
Originally reviewed on hydroflask.com
November 26, 2022
DOES THIS FIT THE 64 OZ BOTTLE ? TY
Originally reviewed on hydroflask.com
November 25, 2022
Is this cap compatible with the 40oz trail series?
Originally reviewed on hydroflask.com
November 21, 2022
will this fit the 32 oz water bottle
Originally reviewed on hydroflask.com
November 16, 2022
Does this fit the 24 Oz wide mouth? thanks
Originally reviewed on hydroflask.com
November 7, 2022
Can I use it to drink coffee?
Originally reviewed on hydroflask.com