After debuting just over 10 years ago, Hydro Flasks quickly gained traction as the go-to insulated water bottle.  For many people, the simple benefit of having a bottle that is vacuum-insulated was enough of a selling point.  For others, it's the clean, yet stylish design.  Whatever the reason, Hydro Flask continues to build its following and shows no signs of slowing down.

It's only natural what happened next.  A whole range of accessories have been developed with the goal of making life with these amazing but cumbersome bottles a little easier.

We here at BottlePro got involved in this niche early with our cup holder adapter, so we've seen it grow over the years, including new notable accessories coming available fairly often.  Here are some of our favorites for the best accessories for Hydro Flasks in 2022 (focusing on 32 and 40 ounce bottles).

We reviewed four popular adapters on the market today.  ​This video will help you decide which cup holder adapter to purchase for your bottle.  Clicking the links will take you to Amazon so you can check prices.

If you'd rather read the review, we've included a transcript of this video below for reference.

(And if you purchase something, we get a referral fee as an Amazon Associate! Thanks for your support!)

We reviewed:

• Amazon Basics
• BottlePro
• Swigzy
• Joytutus

And while we focus on a few types of Hydro Flasks, this review is also applicable to other large bottles like Nalgenes, YETIs, Klean Kanteens, Simple Moderns, Takeyas, Thermoflasks, Iron Flasks, Fifty/Fifty, Swig, and many other popular bottles on the market today.

​If you're not sure whether you need an adapter at all, we highly-recommend you visit the blog post referenced at the beginning of the video so you can determine if your car's cup holders will likely work with any of these adapters. Or if you're using a smaller bottle, you may not even need an adapter!  Just click the link below to view that post.

Which Hydro Flasks Fit in Cup Holders? - The Ultimate Guide (Updated for 2022)

Video Transcript:
Hydro Flasks are great bottles, but many of them are so big that they don’t fit in standard cup holders. So we’re going to review four of the most popular cup holders on the market today, and give you our thoughts and recommendations.  Links to purchase are in the description.

This video focuses on comparing cup holder adapters needed to use larger Hydro Flasks, and we assume you already know you need an adapter.  But you may not need one at all if you have a smaller Hydro Flask, like a 21oz.  Check out our blog post for a full step-by-step guide. Link in the description.

Let’s get started.

Amazon Basics
First we have Amazon Basics.  Like many popular categories, Amazon released their own cup holder and have undercut most other adapters on the market.  But it’s still very functional and a good option on a budget

• The twist to expand base is very easy to use and functional.
• And it has rubber tabs to centralize small bottles.  The tabs are not removable.
• 32 and 40oz Hydro Flasks are the same diameter and fit well, and the tabs keep smaller bottles like 32oz Trail Series centralized.

All-in-all the Amazon Basics cup holder is quite functional for the price.  The main drawbacks are the many people prefer to buy from smaller vendors instead of Amazon brands, the base is not extendable, and the mug handle cutout is quite small.  But overall, this cup holder is a very good option.

BottlePro
Next up we have BottlePro, which is our cup holder adapter.

• Each BottlePro comes with two adapter rings and a foam sleeve to help fine-tune the fit.  The adapter rings are locked when the base looks like this.  To unlock, twist the base so the rings are aligned.  Then slide off the rings.  The adapters can be easily added back on by lining up the grooves and sliding them on.
• A cool feature is that you can lock the rings at different heights, which can help with deeper cup holders.
• Add the soft fit sleeve to help with in-between cup holder sizes.
• 32 and 40oz Hydro Flasks fit well, but smaller bottles can be unstable because there are no centralizer tabs.

In summary, BottlePro is a great budget alternative to Amazon Basics for 32 and 40 ounce Hydro Flasks, but for smaller diameter bottles, you might want to look at an adapter with centralizer tabs.  And keep an eye out for our upcoming 3rd version, which will have many improvements.

Swigzy
Next is Swigzy, which is a great premium option.

• It has a twist-to-expand base,
• rubber tabs (though they are not removable),
• and there is also an option to purchase a unit with additional spacers to extend the height of the adapter.
• One of the cooler unique features that Swigzy offers is the ability to offset the base.  Just loosen one screw, adjust the base offset, then re-add the screw.  This can help two of them fit side-by-side in more cup holders.
• 32 and 40oz Hydro Flasks fit well, and the rubber tabs help centralize smaller bottles really well. 

Overall, Swigzy is honestly our favorite cup holder on the market today, and it pains us to say that because we make one.  But Swigzy comes with a significantly higher price tag.  You might be able to save a few bucks with another option.

Joytutus
Last is Joytutus.  This cup holder is a good option overall.

• The rubber tabs feel great and are removable, which can help make it easier to get larger bottles in-and-out.
• The coaster is also removable for easier cleaning, though this does make it fall out easily if you’re moving your adapter.
• But we’re not huge fans of the base design.  The rubber flap concept looks interesting and is easy for installation because you just push it down into the cup holder, but we found it very difficult to remove when we wanted to switch cars.
• You have to remove the rubber tabs for 32 and 40oz Hydro Flasks to fit, but smaller bottles fit just fine with the tabs in.

While Joytutus has some options like the removable tabs that help it stand apart, for the most part we do not think this outweighs the downsides of the base design.  But it’s certainly an option to keep in mind.

So that’s it!  We hope this review has been helpful.  Don’t forget to check out our website at bottlepro.net, where we have other products like infusers and splash guards for Hydro Flasks.  And subscribe to our blog for more content like this, hydration news, and updates on product deals.  Thanks for watching.

With the every-growing popularity of reusable water bottles like Hydro Flasks, more and more people are wondering what is the best way to keep their bottle close at hand on the road? 

But which Hydro Flasks fit in cup holders, and do you need a cup holder adapter for your car?  This can be a tougher question to answer than you might initially think because of the sheer number of cup holder designs and water bottle sizes.

​And while this post is primarily focused on Hydro Flasks, it also applies to similar reusable bottles like Nalgenes, YETIs, Klean Kanteens, Iron Flasks, Thermoflasks, Takeyas, Simple Moderns, Fifty/Fifty, and many others that are on the market today.

​Before thinking about which Hydro Flask will work for you, we recommend taking a closer look at your car

First, measure your cup holder's diameter and save it for later.

​Then, determine if you have a "standard" or "non-standard" cup holder according to the descriptions below.  This can have a major impact on whether cup holder adapters would fit securely in your vehicle, which opens the possibility of using larger bottles.

Now that you know whether you have a "standard" or "non-standard" cup holder, it's time to think about what size bottle you'd like to have.  Keep in mind that the "narrow", "wide", or "oversized" designations below refer to the bottle diameter, not the mouth diameter.  For example, you can have a 20oz Wide Mouth bottle that is categorized under "Narrow" because it is only 2.91" diameter.

The lists below are based on specifications listed on Hydro Flasks website and some that we independently verified.  If you already have a bottle, we recommend measuring its base yourself to make 100% sure that you have the correct measurement.  If your bottle has a protective boot, then you should also include this in the width measurement (they generally add around 0.25" to the diameter, but it varies based on the boot manufacturer).

The mug measurements are for the diameter of the body, not including the handle.

The links in the lists of bottles go to the product pages on Amazon.

There's a lot of information here, so to make it easier, we've developed this flowchart to help you sort through it all.  You just need to know (1) whether you have a "standard" or "non-standard" cup holder and (2) the diameter of your cup holder compared the diameter of your desired bottle.

Disclaimer: The information provided above has been fact-checked against Hydro Flask and Amazon websites (and with some in-person measurements).  The flowchart below is based on our experience and observations.  However, please note that we cannot 100% guarantee compatibility of any resulting purchases you make because there are literally hundreds of thousands of different bottle/cup holder/adapter combinations once you add them all up.  But hey, that's what return policies are for!

With that said, let's dive right in!

​If you determined that you need an adapter, then check out the adapters listed below.  Unlike back in 2015 when BottlePro launched, there are plenty of cup holder adapter options on the market nowadays.  Here are some of our favorites.

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