Standard Flex Straw Cap
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Hydro Flask Standard Flex Straw Cap
The Hydro Flask Standard Flex Straw Cap fits on standard mouth bottles to help avoid leaks so that we can enjoy ice-cold water while on the go.
Details
- Durable construction handles daily use and cleaning
- Compatible with standard mouth Hydro Flask bottles
- Item #HYFZ02O
- Material
- polyproplyene (BPA-free)
- Compatibility
- Hydro Flask standard mouth bottles
- Activity
- hike, camp, training, casual
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 288 ratings
Review Summary
Customer Images
Here's what customers have to say
The Hydro Flask water bottle cap is generally well-received by customers. Many appreciate the convenient straw feature and the cap's ability to keep drinks cold and prevent leaks. However, some users have experienced issues with the straw being difficult to open and close, and the cap leaking if not properly sealed. Overall, the majority of reviews are positive, with customers finding the cap to be a useful accessory for their water bottles.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJuly 10, 2025
Doesn’t work!
[This review was collected as part of a promotion.] The straw does not suction the liquid out properly. Somehow the straw and the mouthpiece do not fit correctly (even when it is) so it’s like sucking on a broken straw.
Originally reviewed on hydroflask.com
July 2, 2025
Best Company
[This review was collected as part of a promotion.] Hydro flask is the best company I’ve ever dealt with. Their products and warranty are hands-down, the best in the industry.
Originally reviewed on hydroflask.com
June 18, 2025
Prefer the “sippy” type top that was discontinued.
[This review was collected as part of a promotion.] I bought the Flex Straw Cap because the Cap I used to buy seems to have been discontinued. I don’t really like the Flex Straw Cap.
Originally reviewed on hydroflask.com
June 14, 2025
This was a replacement for
[This review was collected as part of a promotion.] This was a replacement for a cap that broke. Thank you so much for your great service. !
Originally reviewed on hydroflask.com
June 11, 2025
Cup holder friendly!
[This review was collected as part of a promotion.] Finally! Fits my car’s cup holder. Altho it’s quite tall and tends to tip forward if I’m not careful. Great addition to my others.
Originally reviewed on hydroflask.com
May 29, 2025
Sometimes leaks
[This review was collected as part of a promotion.] It’s alright, but sometimes it leaks. A rather unpleasant surprise while hiking. My other hydro flasks never had this issue. Mouth piece somehow doesn’t cover the hole well enough when closed
Originally reviewed on hydroflask.com
May 6, 2025
Perfect fit
[This review was collected as part of a promotion.] Fit my 20oz bottle perfectly. Helpful instructions with a 1” measurement for cutting the straw to fit! The red rubber gasket that some have complained about is also unnoticeable if the lid is tightly secured
Originally reviewed on hydroflask.com
May 1, 2025
Great quality
[This review was collected as part of a promotion.] This is very nice. Much better quality that the knock off brand we had previously which broke.
Originally reviewed on hydroflask.com
April 19, 2025
Much better!
[This review was collected as part of a promotion.] I love my hydro flasks that I have but I love them so much better now that I don’t have to unscrew the old cap. The straw cap is outsiding!
Originally reviewed on hydroflask.com
April 16, 2025
My purchase was really a
[This review was collected as part of a promotion.] My purchase was really a replacement for a leaky bottle lid that is no longer available. I appreciated the prompt attention and exchange. Thank you
Originally reviewed on hydroflask.com
Do you have a question about this product?
January 22, 2023
Is this supposed to come with a straw? Mine didn’t when I purchased it through another retailer.
Originally reviewed on hydroflask.com
January 20, 2023
Can you just purchase the flex straw itself or do you have to order the entire cap and straw?
Originally reviewed on hydroflask.com
January 19, 2023
How do I get a steady stream of water? Usually when I drink from the straw, I mostly just get air. I tried removing the straw and putting it back in. Do I need to cut the bottom of the straw at an angle?
Originally reviewed on hydroflask.com
January 18, 2023
What is the composition of materials for this product? Is this safe for people who have latex allergies?
Originally reviewed on hydroflask.com
October 31, 2022
Does the purchase also include straws for the straw cap?
Originally reviewed on hydroflask.com
October 1, 2022
I recently purchased this straw cap for my 32 oz bottle. It seems like the straw is too long for the bottle, and the cap won’t close all the way unless the straw is bent while closing it? Does this new straw cap not work for the 32 oz bottle?
Originally reviewed on hydroflask.com
September 13, 2022
how do you get this straw lid to work? I mostly get air even though I followed the directions exactly.
Originally reviewed on hydroflask.com
September 8, 2022
Does it come with the straw itself?
Originally reviewed on hydroflask.com
July 29, 2022
will the standard mouth flex straw cap come in different colors?
Originally reviewed on hydroflask.com
July 1, 2022
Will this fit the growler since it has a standard mouth?
Originally reviewed on hydroflask.com