Iron Flask Insulated 32-Ounce Stainless Sports Water Bottle

Last updated date: May 4, 2021

DWYM Score

9.8

Iron Flask Insulated 32-Ounce Stainless Sports Water Bottle

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We looked at the top Insulated Water Bottles and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Insulated Water Bottle you should buy.

Editor's Note May 4, 2021:
Checkout The Best Insulated Water Bottle for a detailed review of all the top insulated water bottles.

Overall Take

This insulated water bottle comes with three different lids: carabiner straw lid, flip lid and stainless steel lid. The bottle has a functional design with a stunning exterior finish. It should be hand washed only.


In our analysis of 26 expert reviews, the Iron Flask Iron Flask Insulated 32-Ounce Stainless Sports Water Bottle placed 1st when we looked at the top 7 products in the category. For the full ranking, see below.

From The Manufacturer

INSULATED SPORTS WATER BOTTLE: Goodbye sweat! The double wall insulation makes the Iron Flask sweat-free! It keeps your drink COLD for up to 24 hours, and HOT for up to 12 hours. *NOTE: ONLY the 14 Oz, 18 Oz, & 22 Oz fit in cupholders* 3 LIDS: YES, Iron Flask comes with THREE different lids. Carabiner Straw Lid with 2 Straws, Flip Lid, and a Stainless Steel Lid! *NOTE: The stainless steel lid is plastic from inside and stainless steel from outside* 18/8 PREMIUM STAINLESS STEEL: The Iron Flask is made of 18/8 Stainless steel that is 100% BPA free and non-toxic. It will never leave a metal taste or rust. HAND WASH ONLY WITH SOAPY HOT WATER! FUNCTIONAL DESIGN: The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our logo is now LASER ENGRAVED to assure the highest quality as well. 100% SATISFACTION GUARANTEED: We guarantee that the high quality Iron Flask bottle will surely please you! If, for any reason, you are not 100% satisfied with the Iron Flask, we will issue you a full refund or an exchange!

Expert Reviews

User Summarized Score

9.6
53,878 user reviews

What experts liked

The best thing about this bottle is that you actually get three lids and two straws with it. You get the stainless steel lid, the straw lid, and the flip lid, all of which are dishwasher safe. I think that’s insane value for money, especially when you check out some other brands that only give you a basic lid, and that requires another $15-20 for a more functional one.
- Expert World Travel
This water bottle has double-wall insulation to keep the exterior sweat-free, and keep your drinks hot for up to 12 hours and cold for 24 hours. It comes with three different lids for every sipping style.
- Fatherly
Has a built-in sport top that makes hydrating easy. And for when you’re not working up a sweat, it comes with a flip lid and stainless steel cap, too. It comes in a number of sizes (up to 64 ounces) and bright colors and patterns, and it has a powder coat exterior for a comfortable grip.
- Forbes
This lightweight yet durable stainless steel bottle is recyclable and BPA-free, and is also free from toxins that may be harmful to you and your family.
- Citrus Sleep
The double-walled insulation keeps the Iron Flask condensation-free and easy to pick up with sweaty hands. It’s made from high-quality 18/8 stainless steel that’s BPA-free and won’t leave a metal taste in your mouth. The logo is laser engraved so it won’t peel, and the bottle comes with a lifetime warranty.
- Verywell Fit
Great sports option with elegant design and finish. Available in 18 gorgeous colors and 6 different sizes, you will definitely find the perfect Iron Flask for you.
- Etramping

What experts didn't like

The Iron Flask is not chip-resistant, so don’t expect this bottle to look new for a while. Especially if you’re taking it outdoors.
- Expert World Travel
Hand-wash only.
- Fatherly

An Overview On Insulated Water Bottles

An insulated water bottle is an excellent choice if you want to reduce single-use plastic waste. Insulated bottles not only are an eco-friendly option, but they also keep your beverage at the perfect temperature all day. Most insulated water bottles have thermos-like construction, which means they can ensure your drink maintains temperature for long periods of time. There is very little temperature transfer to the outer walls, so the bottle remains comfortable to hold. Plus, insulated bottles don’t get condensation either, so you don’t have to deal with any moisture on the outside of the bottle.

Most insulated water bottles are made out of stainless steel, which is a durable and safe option. There is no risk of breaking, cracking or denting because of how strong stainless steel is, so you don’t have to worry if you accidentally drop your water bottle. Stainless steel is also comparatively light, so your bottle will be easily portable.

The Insulated Water Bottle Buying Guide

  • The height and width of the bottle is an important buying factor. If you use your insulated water bottle in your car, ensure that the bottle fits nicely into your cup holders. If you like to place the bottle in the outer pockets of a backpack, ensure that the size works for you. The bottle should also be comfortable to hold in your hands without feeling bulky or awkward.
  • There are different types of lids for insulated water bottles. Screw-top lids are fairly common and easy to open and close. Some bottles have spout or nozzle lids, which can be limiting to drink from. Some water bottles actually come with multiple lid options so you can choose which works best for you. Having a lid that attaches to the bottle, even when open, is handy for keeping everything together. This way there is no chance of losing the lid.
  • Angled bottles look interesting, but keep in mind that they may be hard to clean if there is a pronounced bottleneck. Typically, straight-edge bottles are the easiest to clean and maintain.
  • Having a handle on the water bottle is key, especially if you usually have your hands full. A handle makes it easier to carry your insulated water bottle along with a number of other things. You can also use the handle to attach the bottle to a purse or backpack.