

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.
💧 Stay cool, stay hot, stay ahead with Iron Flask!
The IRON °FLASK 40 oz Aurora is a premium insulated stainless steel water bottle designed for active professionals. Featuring double-wall insulation that keeps beverages cold for 24 hours or hot for 12, it includes three versatile leak-proof lids for ultimate convenience. Crafted from BPA-free 18/8 stainless steel, this sweat-proof bottle combines durability with a stylish finish, making it the perfect hydration companion for hiking, camping, or daily workouts.






| ASIN | B0B6KN6N2D |
| Additional Features | Cold for 24 Hours & Hot for 12 Hours, Double Wall Insulation, Leakproof, Non-Toxic & BPA-Free, Powder Coated |
| Age Range Description | Adult |
| Base Diameter | 3.5 Inches |
| Best Sellers Rank | #144 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Camping & Hiking Hydration Flasks |
| Brand Name | IRON °FLASK |
| Cap Type | Straw Cap |
| Capacity | 2.5 Pounds |
| Color | Aurora |
| Customer Reviews | 4.8 4.8 out of 5 stars (67,086) |
| Included Components | Carabiner Straw Lid, Lid, Straw |
| Is Oven Safe | No |
| Is the item dishwasher safe? | No |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 2.25"W x 10.4"H |
| Item Height | 10.4 inches |
| Item Type Name | flask |
| Item Weight | 0.98 Pounds |
| Manufacturer | Iron Flask |
| Material Type | Stainless Steel |
| Model Name | Wide Mouth Straw |
| Number of Items | 1 |
| Pattern | Solid |
| Product Care Instructions | Hand Wash Only |
| Recommended Uses For Product | Water |
| Theme | Sport |
| UPC | 810082482928 |
| Unit Count | 1.0 Count |
| With Lid | Yes |
N**O
Exactly What I Was Looking For
This Iron Flask 40oz insulated water bottle was exactly what I was looking for. I work in public safety and am not always near the station to refill my water bottle and wanted something that would allow me a couple refills but keep the water cold until I needed it. This does exactly that. I used a 20oz shaker bottle as a water bottle, so this gives Iron Flask bottle gives me two refills until I need to fill it up again. It is the perfect size to keep on my passenger seat without taking up much room at all. I have not had any issues with the bottle leaking and it is very good quality. the bottle came with three different lids. One is just a standard lid that stays attached to the bottle when unscrewed and is stainless steel. There is a straw lid, with a silicone straw that goes into the bottle and a plastic straw on the plastic lid for drinking. The third is a plastic lid like a standard coffee thermal drinking lid. I have only used the stainless steel lid as I only use this to hold extra water to refill my other water bottle since I add a water flavor to it. All three lids have a handle source for easy carrying of the water bottle. I drop this thing all the time and it still holds up really well. Of course it is going to scratch or dent when you drop it, it isn't a magic water bottle. But it has not affected the lids or seals in any way. I like to put stickers on my metal water bottles anyways, so nothing a fun sticker cant cover up! I do not put hot liquids in this water bottle, so I cannot speak to how well it keeps liquids hot, but it keeps my water nice and cold so I wouldn't have any doubt in its ability to keep liquids warm for as long as it says. I would purchase more of this product in the future if I needed.
S**L
Almost 6 years and it's still going strong!
There's really nothing to say about this flask except it's top quality and it keeps my water cold all day. I've had it for almost 6 years and it's still clean and sturdy. The lid is a twist on or off kinda lid, so it works. The lid sip top is twist as well, so you don't have to worry about leaks. I managed to snag the 16 fl oz size, which holds exactly two bottles of water. And although it works, I kinda wish I went down a size. There is no straw or handle, for anybody out there wondering, but I don't think you'd need one. Lastly, it's made of some real strong steel, so be careful not to drop it on somebody's head. I highly recommend this bad boy if you're in the market for one.
H**R
Perfect Water Bottle
After my old water bottle started chipping and showing its age, I knew it was time for a replacement. I had been a loyal Zulu user for years in both 24 oz and 40 oz sizes, but when my most recent one began peeling, leaking, and shedding residue from the spout (despite regular cleaning), I decided to explore other options. I’m genuinely glad I did—because the IRON °FLASK 64 oz has been a fantastic upgrade. ⸻ What I Was Looking For With so many bottles on the market, I narrowed my search to a few non-negotiables: • At least 40 oz capacity (64 oz preferred) • Stainless steel construction • A spout-style lid (no straw) with a secure closure • A strong, comfortable handle for carrying • A proven track record with a minimum of 20K+ reviews and 4+ stars IRON °FLASK checked every box with ease. ⸻ Design & Build Quality This bottle feels solid, durable, and very well made. The stainless steel construction gives it a premium feel, and the wide mouth makes filling, adding ice, and cleaning simple. The spout lid is exactly what I wanted—secure, easy to use, and no straw to deal with. ⸻ Capacity & Performance The 64 oz size is perfect for all-day hydration. It keeps drinks cold for hours and eliminates the need for constant refills, whether I’m at home, working out, or on the go. ⸻ Ease of Use The handle is sturdy and comfortable, even when the bottle is full. The lid closes securely, giving me confidence that it won’t leak in a bag or during transport. ⸻ Pros • Large 64 oz capacity for all-day hydration • Durable stainless steel construction • Spout lid with secure closure (no straw) • Comfortable, sturdy carrying handle • Wide mouth for easy filling and cleaning • Excellent reviews and outstanding value for the price Cons • Large size may not fit standard cup holders (expected for a 64 oz bottle) ⸻ Final Thoughts The IRON °FLASK completely exceeded my expectations. It delivers on quality, durability, and functionality at a price that’s hard to beat. If you’re looking for a reliable, high-capacity stainless steel water bottle with a spout lid, this one is an easy, confident recommendation.
B**T
Great quality for the price
No leakage, fits great in a backpack pocket!! Does not fit in most car cup holders. Holds lots of water and holds the original temperature decently well. The straw works great (although if you fill it up all the way the air vent doesn’t work super great, so you just have to drink a little to release the pressure), and the clip lid is great. The design is unique and it hasn’t chipped at all! Great value for the price.
D**R
Exceptional hydration flask
The Iron Flask does exactly as advertised. Keeps beverages cold for hours. I don't drink hot beverages(not a coffee/tea drinker). I love the choice of covers, when packing for later I use the cover with no drink opening when biking I use the straw opening and hiking I use the wider drink spout. The 3 tops are a bonus. The wider opening is a great design to insert approximately a 2 inch ball shape ice cube and make cleaning easy. I love all the sharp choice of colors that others don't offer.
O**Z
düzenli su tüketen, su alışkanlığı kazanmak isteyen kişiler için en uygun ürünlerden,asla pişman olmazsınız. Termos özelliği de gayet iyi
A**R
This is a must buy water bottle I'd highly recommend it in my opinion I've used it now more than over a year and it has been wonderful put a bunch of ice cubes in it and keeps my water or any liquids in it cold for a good amount of time couple hours or more depending upon how much ice you put in it. I love the black colored marble look. 40 oz is a good size that holds a lot of water used it for playing basketball and other sports and exercise. It got hit by the ball one time and fell over on the concrete and it only minorly scratched it seen in the picture not too bad overall strong durable stainless steel water bottle easy to clean and dry and I love the different head attachments that come with it for whatever meets your preference. I use the twist open top that's my personal favorite one that I always use. I imagine this water bottle will last me years before having to ever purchase another one maybe forever but going from plastic to stainless steel is a must I had enough of plastic ones doesn't keep your water cold is toxic with BPA chemicals and isn't good for your health glad I finally made the switch over to stainless steel and will never go back. Also doesn't leave strange after smells like the plastic water bottles would.
A**D
افضل عبوة لحفظ الماء و تدووم مدة طوييل
B**B
Big bottle to help me drink more water, it's a good size well styled bottle,no leaks
M**O
Esta excelente, mantiene el agua fria, los hielos tardan en deshacerse ,lo recomiendo, no he checado con agua caliente su duracion , pero si lo recomiendo para agua fria
Trustpilot
2 weeks ago
2 months ago