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$19.99$19.99
Ships from: Amazon Sold by: Iron Flask Group

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Regular Price
$34.99$34.99
Ships from: Amazon Sold by: Iron Flask Group
IRON °FLASK Co-Pilot Insulated Mug w/Straw & Flip Cap Lids - Cup Holder Bottle for Hot, Cold Drink - Leak-Proof - Water, Coffee Portable Travel Mug - Twilight Blue, 40 Oz
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Return this item for free
We offer easy, convenient returns with at least one free return option: no shipping charges. All returns must comply with our returns policy.
Learn more about free returns.- Go to your orders and start the return
- Select your preferred free shipping option
- Drop off and leave!
Brand | IRON °FLASK |
Color | Twilight Blue |
Special Feature | Sweat Free, Hot 5 Hours, Double Walled, Leak-Proof, Cold 20 Hours |
Style | 40 Oz |
Theme | Travel |
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About this item
- INSULATED HOT & COLD MUG: Whether you crave a hot cup of morning coffee an icy-cold refreshing drink, our mug's double-walled, vacuum-insulated technology will keep your drinks COLD for up to 20 hours, and HOT for up to 5 hours! No more settling for lukewarm sips or diluted flavors!
- FITS IN YOUR CUP HOLDER: Built to fit any standard cup holder - our mug's sleek, compact design ensures a secure fit to avoid accidental spills! Our rubber bottom provides a non-slip base for protection & noise proof - making it your ideal travel companion on busy mornings & adventurous journeys.
- LIGHTWEIGHT & DURABLE: Crafted with 18/8 Stainless steel that is BPA free and non-toxic - this mug is built to withstand the rigors of everyday use, ensuring its durability for years to come. Invest in a mug that not only meets but exceeds your expectations.
- 2 AIRTIGHT, LEAK PROOF LIDS FOR ANY OCCASION: Embrace versatility with not one, but TWO insulated lids! Included is 1 splash-proof straw lid & a leak-proof flip lid - perfect for hot or cold drinks! Avoid spills & leaks, our lids ensure a secure closure, the ideal travel companion
- SIMPLE TO CLEAN: Hand-washing is a breeze with our wide mouth tumbler. Its generously sized opening allows for effortless access to every nook and cranny, ensuring you can easily reach all areas for a thorough scrub. No more hard-to-clean residue for a sparkling clean mug every time, with minimal effort. Ideal for those who prioritize hygiene and ease in their daily routines!
Additional Details


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Product Description




Co-Pilot Family
| Fits in Cupholder | |
| Extra Straw | |
| Straw Lid | |
| Flip Lid | |
40 oz | Size | 50 oz |
| Fits in Cupholder | |
| Extra Straw | |
| Straw Lid | |
| Flip Lid | |
40 oz | Size | 40 oz |
| Fits in Cupholder | |
| Extra Straw | |
| Straw Lid | |
| Flip Lid | |
40 oz | Size | 32 oz |
| Fits in Cupholder | |
| Extra Straw | |
| Straw Lid | |
| Flip Lid | |
40 oz | Size | 16 oz |

From the brand

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Real people, living real lives, doing real things. That's who we want to celebrate life with - one sip at a time. Our world is full of unique and inspiring humans, and we're on a mission to hydrate each and every one of you in whatever style suits you, wherever you may go. So whether you're climbing that next mountain, taking a long road trip, or simply getting through your day - we're here to keep things refreshingly real.
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Get That Summer Feeling
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Sip Happens, Spills Don't
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Sip, Sip, Hooray!
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Videos
Product information
Brand | IRON °FLASK |
---|---|
Color | Twilight Blue |
Special Feature | Sweat Free, Hot 5 Hours, Double Walled, Leak-Proof, Cold 20 Hours |
Style | 40 Oz |
Theme | Travel |
Recommended Uses For Product | Travel |
Included Components | Lid |
Shape | Round |
Pattern | Solid |
Product Care Instructions | Hand Wash Only |
Age Range (Description) | Adult |
Material Feature | Insulated |
Reusability | Reusable |
Unit Count | 1.0 Count |
Product Dimensions | 5.51"W x 10.24"H |
Number of Items | 1 |
Finish Type | Powder Coat |
Manufacturer | IRON °FLASK |
UPC | 810082484960 |
Size | 40 Oz |
Item Weight | 16 ounces |
ASIN | B0C4ZM8GCR |
Country of Origin | China |
Item model number | IRO-FGS-A097-01-AB1US |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #697 in Kitchen & Dining (See Top 100 in Kitchen & Dining) #18 in Insulated Cups & Mugs |
Date First Available | May 12, 2023 |
Warranty & Support
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IRON °FLASK Co-Pilot Insulated Mug w/Straw & Flip Cap Lids - Cup Holder Bottle for Hot, Cold Drink - Leak-Proof - Water, Coffee Portable Travel Mug - Twilight Blue, 40 Oz
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This Item IRON °FLASK Co-Pilot Insulated Mug w/Straw & Flip Cap Lids - Cup Holder Bottle for Hot, Cold Drink - Leak-Proof - Water, Coffee Portable Travel Mug - Twilight Blue, 40 Oz | Recommendations | ||||
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Price | -43% $19.99$19.99 List Price: $34.99 | -20% $16.00$16.00 List: $19.99 | -32% $16.99$16.99 Typical: $24.99 | -8% $21.99$21.99 List: $23.99 | $35.00$35.00 |
Delivery | Get it as soon as Friday, May 9 | Get it as soon as Monday, May 19 | Get it as soon as Friday, May 9 | Get it as soon as Friday, May 9 | Get it as soon as Friday, May 9 |
Customer Ratings | |||||
Sold By | Iron Flask Group | Online Store Central2 | Cafezi | Amazon.com | Amazon.com |
material | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel | Stainless Steel |
capacity | 40 ounces | 24 ounces | 40 fluid ounces | 24 ounces | 30 ounces |
number of items | 1 | 1 | 1 | 1 | 1 |
keyword type | insulated-cups-and-mugs | insulated-beverage-bottles | insulated-tumblers | insulated-tumblers | insulated-tumblers |
weight | 453.59 grams | 15.8 ounces | 0.74 kilograms | 0.69 pounds | — |
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers find the insulated mug keeps drinks cold for up to two days and works well for both hot and cold beverages. The cup features a golden/sunflower yellow color, is well-made, and fits in most cup holders. They appreciate the interchangeable lids and straws, and one customer mentions it survived multiple dings and drops.
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Customers praise the mug's ice retention capabilities, noting it keeps water cold for up to two days and maintains hot beverages for extended periods.
"...I have had it for about two months. Keeps my water cold, ice lasts all day (I use the large 2 in cubes)...." Read more
"...It keeps my water cold a long time. It's wide enough to get my hand all the way to the bottom inside for cleaning it, which is a great feature...." Read more
"These are great cups for a very reasonable price. They keep the content temperature content for a long period of time...." Read more
"The cup itself is perfect, drinks stay cold ALL day, the color is so pretty and the handle is secure...." Read more
Customers appreciate the mug's color, describing it as gorgeous and coming in various shades, with one customer noting its golden/sunflower yellow hue and another mentioning its baby blue shade.
"I love my tumbler! The color is what I wanted, just like online. It is easy to clean, no stains so far. I have had it for about two months...." Read more
"...And the bottom is narrow enough to fit in most cup holders. Great design, and excellent features and quality...." Read more
"The cup itself is perfect, drinks stay cold ALL day, the color is so pretty and the handle is secure...." Read more
"...and the color I got (Aurora) is so pretty. I'm even going to buy another one to keep one at work and one at home...." Read more
Customers praise the cup's quality, finding it better than other brands, with one customer specifically mentioning it as their favorite drinking cup.
"These are great cups for a very reasonable price. They keep the content temperature content for a long period of time...." Read more
"The cup itself is perfect, drinks stay cold ALL day, the color is so pretty and the handle is secure...." Read more
"...This is a great tumbler...." Read more
"...Great product and highly recommend!" Read more
Customers appreciate the mug's size, noting that it fits in most cup holders and is just right for carrying around, with one customer mentioning it holds one to two cups of coffee.
"...It keeps my water cold a long time. It's wide enough to get my hand all the way to the bottom inside for cleaning it, which is a great feature...." Read more
"...The straws are heavier duty and long. The tapered bottom fits in most cupholders. I have bought a number of these for family and friends." Read more
"...This is a great tumbler. It fits in the cup holder, truly doesn't leak, keeps drinks cold..." Read more
"...The ice water stays cold all day, fit in our cup holders in the car and clean easily...." Read more
Customers find the mug well-made and durable, with one customer noting that it has survived many dings and drops, while another mentions it holds up great in the dishwasher.
"...The straws are soft, not flimsy. Recommend this product." Read more
"...Both lids screw on and are very secure. If you close tightly, it's almost impossible for it to come loose. It keeps my water cold a long time...." Read more
"...The straws are heavier duty and long. The tapered bottom fits in most cupholders. I have bought a number of these for family and friends." Read more
"Iron Flask is a great company overall and produces great quality products. These Co-pilot 40oz cups are a favorite of mine!..." Read more
Customers appreciate that the mug is leak-proof, noting it never spills and water flows freely without causing a mess.
"...I have knocked it over twice with the lid made for the straw and no leaks. I purchased this at a discount...." Read more
"...tops, one for coffee sipping and one made for straws and are very leak resistant. The straws are heavier duty and long...." Read more
"...This is a great tumbler. It fits in the cup holder, truly doesn't leak, keeps drinks cold..." Read more
"...By the way, if I tip it for some reason with the straw in, it spills a couple of drops, and that's it. No big spills. Pretty impressive...." Read more
Customers appreciate the mug's interchangeable lids, which include both a flip top and a straw option.
"...I purchased this at a discount. Great value for the money, it comes with two lids and two straws. The straws are soft, not flimsy...." Read more
"...It also comes with a flip top lid for use without straw, like with coffee or other hot drinks. Both lids screw on and are very secure...." Read more
"...We love the many lid options that come with each cup and multiple straws. Great product and highly recommend!" Read more
"...What's even better is, they include two lids: one for a straw (straw included), and one snap-cap...." Read more
Customers appreciate that the mug comes with two straws and a flip cap, with one customer noting the convenience of being able to use it with or without the straw.
"...Great value for the money, it comes with two lids and two straws. The straws are soft, not flimsy. Recommend this product." Read more
"...I got 32 ounce size on both. As pic shows, each comes with 2 straws, a lid to use with straw, which is a screw on, solid lid...." Read more
"...I still had ice in my cup for at least two days. They come with two tops, one for coffee sipping and one made for straws and are very leak resistant..." Read more
"...I also love that it comes with two lid options but the straws that came with it are unusable to do overwhelming pastiche taste that I couldn’t get..." Read more
Reviews with images

Great pregnancy/ post partum water cup
Top reviews from the United States
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- Reviewed in the United States on April 23, 2025Style: 40 OzColor: LavenderVerified PurchaseI love my tumbler! The color is what I wanted, just like online. It is easy to clean, no stains so far. I have had it for about two months. Keeps my water cold, ice lasts all day (I use the large 2 in cubes). I have knocked it over twice with the lid made for the straw and no leaks. I purchased this at a discount. Great value for the money, it comes with two lids and two straws. The straws are soft, not flimsy. Recommend this product.
- Reviewed in the United States on January 18, 2025Style: 32 OzColor: Pink TulipVerified PurchaseGot deent price (much cheaper than the "popular" brand version) on the first one (pink). I liked it so much I had to come back and grab a 2nd one (yellow), and got even better price on that.
I got 32 ounce size on both. As pic shows, each comes with 2 straws, a lid to use with straw, which is a screw on, solid lid. (Other brands have lid that looks cheap, like the lid from sour cream or somethinhg). It also comes with a flip top lid for use without straw, like with coffee or other hot drinks. Both lids screw on and are very secure. If you close tightly, it's almost impossible for it to come loose. It keeps my water cold a long time. It's wide enough to get my hand all the way to the bottom inside for cleaning it, which is a great feature. Even water bottles can get funky, so glad I can clean more completely. While it is wide enough for cleaning, it's not top heavy enough to easily tip. And the bottom is narrow enough to fit in most cup holders.
Great design, and excellent features and quality. I very highly recommend this mug / bottle and would absolutely buy this brand again.
Got deent price (much cheaper than the "popular" brand version) on the first one (pink). I liked it so much I had to come back and grab a 2nd one (yellow), and got even better price on that.
I got 32 ounce size on both. As pic shows, each comes with 2 straws, a lid to use with straw, which is a screw on, solid lid. (Other brands have lid that looks cheap, like the lid from sour cream or somethinhg). It also comes with a flip top lid for use without straw, like with coffee or other hot drinks. Both lids screw on and are very secure. If you close tightly, it's almost impossible for it to come loose. It keeps my water cold a long time. It's wide enough to get my hand all the way to the bottom inside for cleaning it, which is a great feature. Even water bottles can get funky, so glad I can clean more completely. While it is wide enough for cleaning, it's not top heavy enough to easily tip. And the bottom is narrow enough to fit in most cup holders.
Great design, and excellent features and quality. I very highly recommend this mug / bottle and would absolutely buy this brand again.
Images in this review
- Reviewed in the United States on March 31, 2025Style: 32 OzColor: Twilight BlueVerified PurchaseThese are great cups for a very reasonable price. They keep the content temperature content for a long period of time. I still had ice in my cup for at least two days. They come with two tops, one for coffee sipping and one made for straws and are very leak resistant. The straws are heavier duty and long. The tapered bottom fits in most cupholders. I have bought a number of these for family and friends.
5.0 out of 5 starsThese are great cups for a very reasonable price. They keep the content temperature content for a long period of time. I still had ice in my cup for at least two days. They come with two tops, one for coffee sipping and one made for straws and are very leak resistant. The straws are heavier duty and long. The tapered bottom fits in most cupholders. I have bought a number of these for family and friends.Great cups for a very reasonable price!
Reviewed in the United States on March 31, 2025
Images in this review
- Reviewed in the United States on April 16, 2025Style: 40 OzColor: Rose GoldVerified PurchaseThe cup itself is perfect, drinks stay cold ALL day, the color is so pretty and the handle is secure. This has been through the dishwasher as well as hand washed and there is no chipping or fading. The only negative thing I can say is the straws are weak and Crack easily.
- Reviewed in the United States on January 17, 2025Style: 40 OzColor: AuroraVerified PurchaseDisclaimer - I haven't tried the straw lid yet, just the flip cap lid. This is a great tumbler. It fits in the cup holder, truly doesn't leak, keeps drinks cold (particularly if it was cold to begin with or has some ice in the first drink of the day), and the color I got (Aurora) is so pretty. I'm even going to buy another one to keep one at work and one at home. I do have one problem with it. It's a righty mug, and I'm a lefty. It seems like such a silly thing, but it makes a difference! Because I'm a lefty, I usually lift my mug with my left hand, which also allows me to drink my water while I'm working. But to now have to drink with my right hand means I have to stop what I'm doing. It's so silly but it interrupts my flow! (And no, you can't just screw on the cap differently to make it a lefty mug.) Luckily this is solved just by not using the handle while I'm at my desk, but it is a minor annoyance. Not enough to keep me from buying another, though!
- Reviewed in the United States on March 23, 2025Style: 40 OzColor: Apple GreenVerified PurchaseIron Flask is a great company overall and produces great quality products. These Co-pilot 40oz cups are a favorite of mine! I have purchased many of their water bottles over the years for the kids to take to school and for the hubby and I to take to work. We will continue to come back and purchase more. The ice water stays cold all day, fit in our cup holders in the car and clean easily. We love the many lid options that come with each cup and multiple straws. Great product and highly recommend!
- Reviewed in the United States on March 28, 2025Style: 40 OzColor: AuroraVerified PurchaseIN LOVE WITH THIS MUG. Beautiful, solid, keeps stuff cold, easy to hold and carry around even a whopping 40 oz, makes me drink a million x more water. Doesn’t leak easily, unless you truly turn it upside down. A great bargain!!!!!!
- Reviewed in the United States on July 2, 2024Style: 50 OzColor: BlackVerified PurchaseI bought this mug to replace a 50 oz Reduce mug I had used for almost 6 years. The reason was just because I was tired of dealing with the plastic bands that are part of the handle.
I prefer the wider, not-so-tall size of the Reduce mug, but I was willing to give this a try.
Does it keep iced soda as cold and for as long as the Reduce mug? I don’t know, I haven’t tested how long it lasts, but it at least lasts long enough for my actual usage. So it’s fine.
The handle is a little thinner than the other mug, but it seems enough for me to “just get used to it.” So far, it doesn’t seem uncomfortable.
The black coating does look nice, but it’s already getting scratched by a plastic cup holder. So that is pretty disappointing.
But worst part is the lid.
Having used Bubba Kegs in the past, I’ve since grown to hate flip top lids. It’s a nightmare to clean around the hinge (where the flip top meets the lid). Sure, maybe you can get to the visible parts with a brush or a toothpick, but the not-so-visible part requires you to remove the flip portion to clean inside where the hing sits. I was able to bend the lid for the Bubba Kegs to pop out those pieces, but the Iron Flask lids doesn’t appear to allow it.
While I understand the flip top needs to be snug to avoid popping open and spewing the liquid all over the place if the mug falls over, it’s far too snug for me to open with one hand while I’m trying to drive. The only option there is to leave it partially or completely open, which defeats the whole “leakproof” objective.
Compared to the generic lids I have for the Reduce mug, either the opening or the vents are smaller. This means it pours more slowly and takes longer for me to get a decent “gulp” done. Not a big deal at home, but a different story when I’m doing delivery work. I’d rather finish drinking sooner than later.
Similarly, due to the design on the inside, it catches my fake ice (balls of plastic with freezable liquid inside) too easily, which then blocks the flow… slowing it down even more.
I had attempted to reuse the generic magnetic lid from the older mug, but it’s a press in friction type, not twist on. While I could insert the lid with minimal effort, trying to remove it was a different story. My hands are still sore from the effort.
I found, ordered and received a mug that is the same size as the Reduce mug, just without the plastic band. The problem is that I’ve also been going through multiple expandable cup holders for my car to hold a 50 oz mug. The third one, which was ordered as the same time as that new mug is the shortest, allows the mug to sit the lowest and the top doesn’t wobble like the other two. But it doesn’t fit the newest mug. Holder expands to 4.8” while the mug is 5”. Seems like such a small difference, but while I can get the mug past the top of the arms, it won’t sit flat and the arms are bending quite a bit. Since they’re plastic, they’ll eventually break if I force it.
So then, there’s why I have to settle for this Iron Flask mug… cause it’s the only one that fits the cup holder.
Maybe if the folks that made this mug are reading this, how about a lid that fits (twist on), but uses the magnetic sliding stopper? Easier to clean, easier to use and fits.
Top reviews from other countries
- Chelsey CrevarReviewed in Canada on June 4, 2024
1.0 out of 5 stars Leaks
Style: 32 OzColor: Dark RainbowVerified PurchaseThis cup has been fantastic. However, after 4.5 months it now leaks from the seal at the lid. And I mean it leaks A LOT! I would like to reach out to the company to see what they can do but have not found a way because I’m outside of my 30 day return window. It’s really disappointing that it lasted such a short time.
- AliceReviewed in Canada on September 25, 2024
5.0 out of 5 stars Great mug! Exceeds my expectations.
Style: 40 OzColor: AuroraVerified PurchaseI love this mug. I ordered the 40 oz Auroa style. This mug keeps ice solid and water ice cold for 24 hrs. I have a bad habit of dropping and spilling, this mug has proven to be a game changer. Doesn't spill at all with the straw top. I haven't tried the other lid because I prefer cold drinks. This mug was totally worth the money and it fits in my cup holder. I want one in every colour. But this exceeded my expectations. It's also dishwasher safe which is a HUGE bonus if you hate washing stuff by hand. Best mug I've bought. The Aurora colour is so beautiful my picture doesn't do it justice. It does get hand prints on it if I don't use the handle but they wash off easily with a damp paper towel. I recommend this seller and it comes with a warranty that you can easily register in 5 minutes online.
AliceGreat mug! Exceeds my expectations.
Reviewed in Canada on September 25, 2024
Images in this review
- ChellieReviewed in the United Kingdom on April 27, 2025
5.0 out of 5 stars Sturdy, high quality beautiful colour….
Style: 40 OzColor: AuroraVerified PurchaseLove it, very very high quality flask, with such a beautiful colour, I’m constantly being complimented on it. I’ve only used it for cold drinks but it’s great that it comes with 2 straws and a lid for hot drinks. Keeps the drinks cold for over 24 hours, very easy to clean, fits into the car cup holder, it’s sturdy and usually spill proof. Highly recommended product
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Gabriela FloresReviewed in Mexico on October 23, 2023
5.0 out of 5 stars Es perfecto!
Style: 40 OzColor: Rose GoldVerified PurchaseEs perfecto! Excelente tamaño, color justo como en las fotos, gran calidad y conserva mi agua helada por días! Es mi quinto producto de Iron Flask. Recomendado!!
Gabriela FloresEs perfecto!
Reviewed in Mexico on October 23, 2023
Images in this review
- chelynnahReviewed in the United Kingdom on April 1, 2025
5.0 out of 5 stars Great quality.
Style: 32 OzColor: AuroraVerified PurchaseI have tumblers from another brand that I really like, that also have the dual lids, but when I saw the Aurora colour of this one I just had to have it.
It’s gorgeous, and works as well as my other brand. The additional straw was a pleasant surprise.
I haven’t used it for hot drinks as I use mostly for water and juice, but it definitely keeps cold for ages.