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๐ฆ Stay cool, sip smart โ hydration just got an upgrade!
The Hydro Flask Flex Straw Cap is a leakproof, insulated straw lid designed for Standard Mouth Hydro Flask bottles. It features a flip-open straw for easy sipping, a secure click-shut seal to prevent leaks, and comes with two customizable straws and a trim ruler for a perfect fit. Dishwasher safe and BPA-free, this cap is ideal for cold beverages and built for convenient, on-the-go hydration.






















| Asin | B09D8RPYKJ |
| Best Sellers Rank | #5,051 in Sports & Outdoors (See Top 100 in Sports & Outdoors) #87 in Water Bottle Accessories |
| Brand Name | Hydro Flask |
| Color | BLACK |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,368) 4.6 out of 5 stars |
| Global Trade Identification Number | 00810028842878 |
| Included Components | Water Bottle Accessory |
| Is The Item Dishwasher Safe | Yes |
| Item Type Name | Water Bottle Accessory |
| Item Weight | 0.01 Pounds |
| Manufacturer | Hydro Flask |
| Manufacturer Part Number | SFS001 |
| Manufacturer Warranty Description | Lifetime |
| Material Type | Plastic |
| Model Number | SFS001 |
| Number Of Pieces | 1 |
| Product Style | Flex Straw |
| Shape | Square |
| Unit Count | 1.0 Count |
| Upc | 810028842878 |
User
Huge Improvement Over the Older Straw Lids
This newer Hydro Flask straw lid design is a major improvement over the older versions. The best update by far is that the rubber gasket now fully comes out for cleaning. That sounds minor until youโve owned older straw lids and realized how much buildup can happen around seals that donโt fully disassemble.Weโve used these daily for school, sports, work, road trips, you name it, and they hold up really well. No leaking issues, the straw is comfortable to drink from, and the handle makes it easy to carry or clip onto bags.I also appreciate that replacement parts are available because the bottles themselves last forever. Being able to refresh the lid instead of replacing the whole bottle is a huge plus.Simple product, but very well done.
User
Good buy!
Very nice! Closes tightly. Easy to take apart and clean. I like that the softer parts are red so that mold canโt hide.
User
Great addition to the water bottle
Works great and makes the bottle so much easier to use. Easy to quickly disassemble and wash in the dishwasher. Sturdy and nice looking. Would buy again.
User
Just what I was searching for
Cap fits my 21 oz Hydroflask and does not leak when the spout is closed. I was not able to confirm before I ordered that it would fit my size bottle so I'm posting a couple of pics so others can see that it fits. Packaging includes clear instructions for how to fit the straw to the cap, and an extra straw is provided as well.
User
Easy to clean but wish the spout had a sanitary cover
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 :(. itโs 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 didnโt 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 wouldnโt be an issue for her at this age but it might be an issue for other families.
User
It works
Worked as described.
User
Almost Perfect
You can't use it without the straw and you have to use the straws it comes with or it will leak, even if it seams like the same size. But other than that it's a great replacement for the usual cap. I know it sounds simple but I love it because I'm always trying to find ways to get myself to drink more water and the flip straw rather than having to unscrew the cap makes a huge difference in my water intake.
User
Super impressed
So impressed with this! Feels like I got a brand new bottle, fit perfectly on my slim 24 oz bottle. Why did I wait so long on purchasing this. Definitely recommend
User
Does what it says (not for warm liquids though)
Works well, does not leak but DO NOT USE WITH WARM LIQUIDS, just cold drinks
User
Perfect sports top for hydroflask
Works great, fits hydroflask and is leak proof.
User
excelente
excelente
User
The smell of the red silicone
For those who are sensitive to smells this cap is not a good choice. It has quite a strong smell from the red silicone. I cleaned it many times and left it outside, anyway it smells.
User
Worth the money
Love it, great attention to detail.It comes with two straws, you cut it to decide the length so it works for all bottles that fit the lid shape.The red tab at the bottom can be used to hang the cap on the side of the bottle so its easier to fill up without pulling the entire straw out.
Trustpilot
1 week ago
3 weeks ago