Which Hydro Flask Lid is the Best? (We Have a Favorite)

Which Hydro Flask Lid Should You Get?

Congrats, you have a Hydro Flask (or are thinking about getting one soon)!  It's hard enough deciding which Hydro Flask bottle to get, but have you also thought about which lid you'll use?

Hydro Flask has four (4) lids available right now on Amazon: Flex Cap, Flex Sip, Flex Straw, and Straw Lid.

In this video, we go over how each one works, what we like and don't like about each design, and how we use them.

If you'd rather read through the review than watch the video, see the written summary below.

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Summary

​Hydro Flask has four lid options, and you might be asking which lid is best for you. We've reviewed and tested each lid extensively, and here's what we think.  Links are in the description.

Which one is best for you?  Well, it depends on how you want to use it, but we can tell you how we like to use them.

• We like using a Flex Cap with a SplashPro in our largest bottles when we're doing something active. We find it easier to get smooth pours and bigger gulps of water while also keeping water out of your face.
• For sipping at work or in the car, we like using Flex Straw with a FlavorFuze Straw infuser to add some flavor.
• And for coffee and tea in the morning, we prefer to use the Flex Sip lid with a smaller Hydro Flask like a 16oz.
• The only lid we recommend against using is the original straw lid. If you want a straw lid, just get the Flex Straw.

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Flex Cap

Hydro Flask Flex Cap Lid

First is the Flex Cap, which is their "standard" lid.

Pros:

1. Simple to clean.
2. Nice handle for easy carrying.
3. Insulated (better than the other lids).​

Cons:

1. Unscrew the cap each time to take a sip.
2. Without a splash guard, it's easy for water to splash in your face.  If you're using this lid, check out our SplashPro splash guard to help keep water and ice under control.

Our Rating: 3/5 Stars

See Pricing on Amazon

Make It Even Better with a SplashPro Splash Guard

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Flex Sip

Flex Sip Lid

Next is the Flex Sip lid that was released in 2020.

Pros:

1. No need to unscrew the cap to take a sip.  Just twist the cap to the right.
2. Keeps water and ice from splashing in your face.
3. It has the same great handle as the Flex Cap. 
4. Insulated.
   

Cons:

1. There are a lot more steps to clean the lid properly. It's not hard, it just takes a little more time than you would have with the other caps.
2. ​Bulkier than the Flex Cap
   

Our Rating: 4/5 Stars

See Pricing on Amazon

Make It Even Better with a ​FlavorFuze Steel

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Flex Straw

Flex Straw Lid

Third we have the Flex Straw lid, and this is their newest lid that was released in 2022.

Pros:

1. The spout snaps closed securely and doesn't leak.
2. Easy to clean.
3. Good handle.
4. Insulated.

Cons:

1. Not as easy to take big swigs of water as with Flex Cap.
2. Not much else.  We love this lid, and it's our favorite one right now.

Our Rating: 5/5 Stars

See Pricing on Amazon

Make It Even Better with a FlavorFuze Straw Infuser

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​Straw Lid (Original Design)

Straw Lid (Original)

And last is the original straw lid.

Pros:

1. It's a little simpler to clean than the Flex Straw, but that's about where the benefits end.

Cons:​

1. Bad handle.
   
2. Not insulated.
3. Leaks more.
4. More expensive for some reason (as of July 7, 2022)
5. Design feels like an afterthought
   

Our Rating: 2/5 Stars (Just get the Flex Straw)

See Pricing on Amazon

​Also works with a ​FlavorFuze Straw Infuser

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Want to take your Hydro Flask to the next level?

Check out our Amazon store for fun and helpful accessories, like fruit infusers, cup holder adapters, and carrying slings.

See BottlePro's Store