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The 8 Best Insulated Water Bottles to Keep Your Cool All Summer 2021

A man with backpack and cap drinking water on a hot day.

Summer is that time of the year when we need to double down on our fluid intake. Thankfully, the right water bottle can fulfill our hydration needs — hot, cold, or anywhere in between. If you’re still unsure about the need for a reusable water bottle, consider the benefits.

Not only is using a personal insulated water bottle useful, but it also lets friends and colleagues know that you’re living an eco-conscious life. Do yourself a favor and get one of these best insulated water bottles, so you won’t have to buy bottled water during your commute or road trip.

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Earthwell x Grayl Roaster Loop Bottle

An Earthwell x Grayl Roaster Loop Insulated Water Bottle in Sierra Red variant.

We’ve been huge fans of Grayl ever since discovering the clever Geopress Purifier bottle. The company recently teamed up with Earthwell on the Earthwell x Grayl Roaster Loop Bottle. The design features handsome, laser-etched stencil artwork on the outside. But, it’s more than a pretty face. The bottle’s TempLock double-wall vacuum insulation promises to keep your icy drinks ice-cold for up to 40 hours, beer chilled for up to 16 hours, and hot beverages piping for up to 10 hours. The patented cap dispenses the contents of the bottle at a sip, drink, or chug, and the x Grayl features a thick loop for attaching it wherever is most convenient.

Takeaways:

  • Available in 16 ounces and four different colors
  • For a larger alternative, upgrade to the Earthwell x Grayl Kewler Bottle for maintaining the desired temperature of up to 32 ounces of your favorite beverage.

Hydro Flask Trail Series Bottle

A Hydro Flask Trail Series Bottle in Topaz variant.

Great insulation, simple design, bold color choices, an easy-to-carry handle, a lifetime warranty — what else could you want? What about a company that cares about our green spaces? Through its Parks for All program, Hydro Flask provides grants to nonprofit organizations focused on building, maintaining, restoring, or providing better access to parks.

Couple this with a long-lasting stainless steel design that keeps drinks cold for 24 hours or hot for 12 hours, and you’ve got a bottle that can work for everyone, especially for the outdoorsy person in your life. Cleaning them can get tricky, however, so make sure to look at our guide to cleaning a Hydro Flask if you buy one.

Takeaways:

  • Available in 21 ounces, 24 ounces, and 32 ounces as well as regular and wide mouths.
  • The wide variety of sizes, colors, accessories, and matching lids are hard to beat.

CamelBak Podium Big Chill Insulated Water Bottle

A CamelBak Podium Big Chill Insulated Water Bottle in Fiery Red/White variant.

Whether you’re crushing the pavement on a road bike or tossing a Frisbee at the park, you can take down the heat with CamelBak’s Podium Big Chill insulated water bottle. Constructed from non-BPA, BPF, and BPS plastic, this double-walled bottle with closed cell foam technology should replace any standard water bottle you’ve got stashed alongside your outdoor gear. On a hot day, the Podium Big Chill will keep you and your drink cooler for longer. The self-sealing cap allows you to hydrate without pause and, once you’re done for the day, can keep your drink from leaking in your bag with a secure lockout. With a handful of different color and design options, this bottle can fit both your active and style needs.

Takeaways:

  • Available in 24 ounces.
  • This bottle is easy to carry via hand or bike and can story well in a backpack.

Nalgene Tritan Wide-Mouth Bottle With Insulated Sleeve

A Nalgene Insulated Neoprene Bottle in a clothing sleeve.

Nalgene is known for its iconic water bottles that are great for, well, water. This sleeve is a vacuum-insulation-inspired upgrade to the company’s classic 32-ounce water bottle. If hydration is your goal, carry this lightweight water bottle around wherever you go and measure your liquid consumption as you gulp through the day. To keep your drink cool, add the neoprene sleeve that has a simple and attractive design.

Takeaways:

  • Available in 32 ounces.
  • Both the bottle and sleeve are interchangeable and easy to customize (and wash).

Yeti Rambler

A Yeti Rambler bottle.

Use the Rambler to keep your hot chocolate hot, your cocktails chilled, and your water from spilling during all sorts of adventures, whether it’s a simple commute to the office or an extended car camping trip. The cap screws on tight, providing a more secure seal than Yeti’s popular tumbler. It comes in six colors, in addition to the classic stainless steel. The double-wall insulation is dishwasher-safe as well as damage- and rust-resistant, making the Rambler one of the toughest and best vacuum-insulated water bottles on the market.

Takeaways:

  • Available in 18 ounces, 26 ounces, 36 ounces, and 46 ounces.
  • The Rambler boasts the same durability that Yeti is known for.

OtterBox Elevation 20 Tumbler

An Otterbox Elevation 20 Tumbler.

Like its Yeti counterpart, the Elevation is stainless steel in construction but can be dressed up in a few bold colors. If that isn’t enough, you also could add a sleeve for more color options and added grip. Add to that a sweat-resistant design, an OtterBox lifetime warranty, and a range of compatible lids, from a multipurpose shaker to a French press, and you have a multipurpose bottle that can make your coffee and store it, too.

Takeaways:

Klean Kanteen Insulated TKWide

A Klean Kanteen TKWide Insulated Water Bottle in Buttercup variant.

When it comes to keeping beverages warm or cold at the office, Klean Kanteen makes an insulated water bottle that is fresh and functional. With double-wall vacuum insulation, stainless steel construction, and attractive colors, your Klean Kanteen should follow you to all of your staff meetings. The best part is the Cafe Cap, which is leak-proof, easy to drink from, and just all-around clean.

Takeaways:

  • Available in 12 ounces, 16 ounces, 20 ounces, 32 ounces, and 64 ounces.
  • The Cafe Cap matches the wide mouth, which makes it easy to fill with ice or clean.

S’well Stainless Steel Bottles

A blue Swell Stainless Steel Bottle.

Many insulated bottles are double-walled, but S’well takes it a step further with triple-wall insulation. That not only means your cold drinks will stay cold (for 24 hours) and your hot drinks hot (12 hours), but you won’t get any pesky condensation on the outside. The best part: There are so many color options. Considering the price, the personalization options, and the best-in-class insulation, it’s one of the best vacuum insulated water bottles available.

Takeaways:

  • Available in 9 ounces, 17 ounces, and 25 ounces.
  • Personalization is key — imagine a color or a pattern and S’well is bound to have it.

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