Customer Reviews Hydro Flask Standard Mouth Flex Straw Cap

This cap is perfect for my son's HydroFlask that he takes to school everyday. It seals really well and tight and never leaks. The straw fits snugly in the opening on the bottom of the cap and never falls out or comes loose. It's very well made. I like how the part you drink from flips down so it isn't exposed all the time.

I love all of my Hydro Flask products, and was excited to see this new straw cap! I have yet to have any issues with leaks and it is much easier to pop the straw cap open than to have to unscrew and re-screw the cap. This is especially useful for when my girlfriend and I are going to share a bottle since she always says I screw the cap on way too tight.

This is a wonderful addition to the hydro flask. You do have to cut a little bit of the straw off to fit the 21 oz. bottles though. I love that a can just add a straw to my flask, or not. You can though.

This is a very smart addition to your Hydro Flask. The straw slips into the bottom of the cap and allows you to drink from the entire flask without having to tilt it back. Simple instructions on how to measure and trim the straws are on the back of the package. Simple and useful. The cap itself is well made and looks like it won't leak a drop. This is a winner.

Woww, I really like this Standard Flex Straw Cap, in colour black. It's super easy to pair with my hydro flask bottle, perfectly fits the size. It's leak proof cap, so I have no worry to spill the water. This cap has a great quality, very sturdy and well made. It's included with 2 straws, so I have a straw back up when the other one gets old. I really like that this cap has a strap on it, make it easy to hold the bottle everywhere I go. This cap is dishwasher safe and BPA free, so my whole family member can use it safely. I highly recommend this product.

I got new lids for my old water bottles and overall love them. Only complaint is I dropped my previous water bottle on its head on a brick walkway and snapped the plastic bit off that opened the straw (and it was a bad day). This was a chance occurrence but the plastic bit can snap given the right circumstances.

Too expensive or it would've gotten a "great" rating

Stuck it in the bottle and it works

Good quality, well-designed, very secure and spill-proof. Only complaint is that the tab to flip open the straw is so secure, it is actually difficult for my 8 & 10 year old kids to do on their own. Hoping it loosens up just a bit with time and practice. But would rather it be too solid than leak.

I use this with my 18oz water bottle in my car so I don't have to fiddle with unscrewing the cap. It works well for that purpose.

The last one the straw broke off when I dropped it. The new one is just like the old one.

The straw works great easy to use. Just remember to cut the straw on the bottom on a diagonal and it will work great.

I am not typically a straw person but found I havent been drinking enough water on walks. I was ordering a bottle for a family member who also wanted a straw top, so I thought Id try one out for myself. I am shocked by how much I like it! Its easy to set up, the straw is easy to use, the water tastes clean and unaffected through the straw (I hate off flavors from straws), and the cap doesnt leak either from the fully closed screw top nor from the straw portion itself. My only complaint is that it is visually difficult to see and physically difficult to feel the difference for which side of the top tab will open the straw. It makes me think of USB-A plugs where it feels like you plug it in upside down more than half the time, with the straw its like more than half the time pulling toward the closing side of the straw tab rather than opening it. I feel like theres an engineering opportunity here to add some texture and slight visual different to make it easier to sense at a glance and at a touch which side to pull on to open the straw. Otherwise, great product. (Tho I do agree with others that the red contrast gasket seems unnecessary, and there should be other options or just black.)

Really nice Given to my mom for Christmas She loved it!

The straw cap has not been perfected. It takes a lot of suction power to pull the water up through the straw. Unfortunately, my wife and I will need to go back to the standard cap and unscrew it to drink.

Perfect!

When I am driving the flip-up straw cap is the perfect topper for my Hydro Flask.

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The cap is great. The fast service is even better. I cannot remember ever dealing with a company with such great customer service. My Hydro Flask itself is best type I have ever used.

Its a very sturdy straw cap and comes apart so its easy to clean. Also comes with an extra straw. Unfortunately, I bought this for my 5 year old and its too hard for her to open by herself.

Excellent product and the customer service is top notch. I was impressed with the prompt service.

It doesnt seem like it locks like the old one

Perfect replacement - immediately fixed my bottle issue!

I love it! It perfectly fits!

Would appreciate this straw for my new wide mouth 20 oz as a lid option. Makes for safer driving, no need to tilt.