Search  for anything...

IRON °FLASK Sports Water Bottle - 40 Oz, 3 Lids (Straw Lid), Leak Proof, Vacuum Insulated Stainless Steel, Double Walled, Thermo Mug, Metal Canteen

  • Based on 119,692 reviews
Condition: New
Checking for product changes
$29.95 Why this price?
Save $15.04 was $44.99

Buy Now, Pay Later


As low as $7 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Jun 25
Order within 12 hours and 29 minutes
Available payment plans shown during checkout

Size: 40 Oz


Color: Carrara Marble


Features

  • 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 100% LEAK PROOF 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!

Brand: IRON °FLASK


Capacity: 2.5 Pounds


Color: Carrara Marble


Product Dimensions: 2.25"W x 10.4"H


Item Weight: 0.98 Pounds


Material: Iron


Care instructions: Hand Wash Only


Cap Type: Straw Cap


Product Dimensions: 3.5 x 3.5 x 10.4 inches


Item Weight: 15.7 ounces


Manufacturer: Iron Flask


Country of Origin: China


Item model number: Iron Flask


Is Discontinued By Manufacturer: No


Batteries required: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Worth The Price-Point; Pros and Cons
Size: 32 Oz Color: Pearl
So this is actually a review including 2 bottles, as I recently bought one to replace the first one I had (first pic/blue-pink bottle) and haven't used the new one (Opal) yet. So functionality review will be based around my experience with my first. For the sake of those looking for a quick answer; I find the product to be worth the price-point. I also believe in getting what you pay for. I had my bottle for around a year (only tossed-out due to my own folly) and it did everything I wanted out of a bottle. Cons: - There was a bit of a weird, chemically smell/taste like others have mentioned. I did get it to go away; cannot say if others could as well. - You run a small-risk of getting a pre-dented bottle? Amazon makes it pretty easy to exchange (for me). -A little difficult to get the gasket in and out, so you can really make sure you don't have any bacteria growth in your lid. - Supposedly "not actually vacuum-insulated". **This is based on responses within other comments. Pros: - Absolutely keeps your drinks cold. Even if you just put the drink in cold, with no additonal ice. - At least sturdy enough to only get a little scuffed-up when it falls to the asphalt from the top of your car and no safety-bands on it. - Good for a long time, as long you don't heck up and let it get gross by accident. And you may even just be more confident in your sanitizing abilities than I am. As I mentioned above; I got my first bottle (blue/pink) about a year ago. I only replaced it because of my own mess-up, where I left Liquid IV I was drinking-on in it for waayy too long (I am ADHD and object permanency/executive dysfunction is a constant struggle) and I was not going to try and believe I could clean it thoroughly enouch, especially since the bacteria had gotten under the gasket as well (the thin, opaque, silicone-ring in your lid that creates the seal. The ring is removable (need something to pry it out), however that's a tight spot and didn't think I could scrub into it enough and feel safe. I don't believe my first bottle came with the additional 2-lids, so that was a nice surprise this-time-around, to have some options. I won't even really touch on the "is it actually vacuum-insulated or not" convo because, as much as I have a vague-knowledge about vacuum-spaces and the science to that.. I have the ability to admit I know nothing about how that applies to water-bottles enough to make some of the statements others have in their reviews. The Company seems adamant in that they are.. and if they have a step within their manufacturing process that involves attempting to create some kind of a vacuum-layer? Then I'm not going to sit here and try to call them liars, just because it doesn't seem to fit an ideal of what that should look like. 🤷🏼♀️ Does it keep your stuff cold?? Yeah, 100%. I have put just refrigerated water, with no ice, and it's stayed cold for hours. Then it's even colder/longer with ice. I did get the weird, chemically smell/taste that others have mentioned. But I just used a straw-cleaning brush to get into the drinking-nozzle and crevices of the lid with some Dawn and really hot water and it was gone. There were a few, good drops that had happened and it barely dented, really even barely scuffed, which was impressive.. until.. lol We come to the original order of the replacement bottle (Opal). Now, I was able to immediately order a replacement (that is 100% fine) and am sending this one back.. however, I am just incredibly curious what in the WORLD happened to it, more than anything?? Lol My old-bottle had never exactly fallen at 50mph onto a curb or anything like that.... But if the bottle in the 2nd pic is any indication to the possible results, I don't recommend being that rough with it. Lol the Amazon bag did not have any damage that correlated to the damage on the box/bottle, so I'm assuming it had already happened before being packaged for shipping to me. With how hard Amazon employees work, I don't really blame them for missing it (or not caring if they did see it lol). If you're looking for a water-bottle that functions and you don't mind the possibility of needing to exchange a faulty one and giving it a GOOD scrub before-use (really should be, anyways)? This is a great choice at a more humble price-point, compared to other brands whose products don't function much, if any better than this one would for you. ... show more
Reviewed in the United States 🇺🇸 on February 5, 2023 by Momo Momo

  • Life Changing (Hear me out)
Size: 22 Oz Color: Midnight Black
This bottle is the one I've been looking for for soo long! Heads up, this is going to sound like a shill but its just that good IMO. Multiple lids - Amazing and such a nice convenience. Having the multiple lids have allowed me to use this for 90% of what I drink from now. Materials used - Soda safe! Soda always has a bad flavor from metal thurmice/cups but this one, I can safely say it works. Just be careful with which lid you use for this as carbonation could create a small explosion/leaking. Not a single drop has leaked from this bottle since I got it, 2-3 weeks IIRC This bottle has allowed me to stop buying other bottles and actually drink water much easier (Your results may vary) Ive tried off-brand, cheap, expensive, Yeti tumblers, this one seals the deal for me. Insulation is decent, but dont take my word for that one. I am also not a coffee person, so do your research if you are that type of person. 4/5 stars only because cleaning can be a challenge with the lids. Got extra straw and a sticker with my purchase :) I can't be happier realistically. ... show more
Reviewed in the United States 🇺🇸 on March 14, 2023 by IIKrypticsII

  • Excellent Product and Support
Size: 64 Oz Color: Day & Night
I purchased the 64oz bottle to replace my TAL Hydration version of the same size. I realize it seems a bit excessive to get a 64oz bottle but personally I disagree. I know I'm hydrated if that bottle is empty at the end of the day. The best part is if I put a little ice in there, the water is gonna be cold for a long time. In terms of the Iron Flask version it's really got everything I need. 3 different lids to choose from. I usually use the flip top one which is much easier to clean than the screw cap I was using previously. The black/white gradient design is pretty sick as well. Honestly the best part so far has been the customer service. I tried to order a replacement cap for my TAL bottle and waited....and waited. No response, so eventually I cancelled the order and went with Iron Flask. I didn't realize it came with a lifetime warranty until I received it. Messaged support to register my bottle and it was all done within the hour. I may come back to this review in the future as I've only had the bottle a couple weeks but so far so good. ... show more
Reviewed in the United States 🇺🇸 on February 28, 2023 by Ian Ian

Can't find a product?

Find it on Amazon first, then paste the link below.