Co-Pilot Insulated Mug w/Boot, Straw & Flip Cap Lids - Cup Holder Bottle for Hot, Cold Drink - Leak-Proof - Water, Coffee Portable Travel Mug - Azure Mist, 40 Oz

Love my insulated mug! I primarily use it for water purposes. It keeps my water (without ice) cold for hours. It’s a sturdy mug and the color is vibrant. I’ve turned the mug over a few times and it does not leak. Easy to clean. It’s high quality and it came with 2 straws and 2 different lids. Don’t hesitate, buy it now.

I recently bought a nice water filtration system which has allowed me to completely ditch plastic water bottles. I wanted a replacement for my normal 1L glass mug and found the 40oz Iron Flask. True to its description, this insulated mug does a great job at keeping cold liquids cold. I haven't tried with hot. If I pour refrigerator-cold water into this mug in the morning, it will still be at the low end of cold into cool in the evening. I can imagine even if I had the same water in their for an entire day, it would still be cool. I prefer my water ice cold, so this mug works perfectly for me since the water never lasts long. The mug comes with 2 lids. One has a hatch lid for sipping, and the other a simple hole for a straw (2 straws are included). My wife has gone through +10 water bottles over the years and she ditched her newest fave for this one after seeing how simple the lids are for cleaning and use. Another great aspect of this mug is the weight. Even completely full, this mug is very well balanced and easy to carry for both my wife and I. These mugs look cool too. I chose the black with white speckled and my wife chose the blue/dark blue gradient. Both have a great look and feel. The coating isn't rough at all. I would feel zero shame in bringing one of these around while running errands. Overall this mug exceeded our expectations and is highly recommended!

I love Iron Flask Copilot cups! I like them even better than my expensive Stanley cups, and I find the Iron Flask cups keep my cold drinks cold longer than my Stanley. I can put ice in it in the morning and the ice is still there all day. The price is great and the quality is spot on. I’m a vet tech and I call my cup my “emotional support cup.” Even other techs I work with have bought them. Their color options are great as well! Their customer service is amazing as well. The cup I just purchased had an issue with one of the lids. I contacted them and they quickly responded to address the issue. Out of all of the Iron Flask cups I have, this cup was the only one I’ve had any issues with and they quickly helped me out with it. Highly recommended!

I’ve had for a week and my water intake has already tripled. Who knew all I needed was a cute bottle to take everywhere. I’ve only had washed but the parts are easy to disassemble and reassemble. It takes some elbow grease to put back which I like , I want it to be as leak resistant as possible. I get compliments all the time. I’m a hot water drinker and it definitely keeps the liquids hot for hours. Not that they normally last that long. Love that it has different lids and I use both interchangeably although the straw lid gets the most use. Great price since other brands easily charge double. Will probably get another for work so I don’t have to take this one with me. Absolutely adore that it fits in the cup holder of my 2018 Buick.

Had it for a week or two. Not bad for the price. Hand wash only but just a simple dish soap rince is enough to clean it. Lid quality is okay, so far it doesn’t leak we will see in the future. It keeps the drink cold or hot for a long time, like overnight long time. It is sturdy but doesn’t balance itself too well and falls on its side quite a bit. Good thing it doesn’t leak so far lol

This is my 3rd Iron Flask. I love them! Keeps beverages cold, love the sleek design and the colors are amazing! Came with 2 different lids and 2 straws. They also clean up very nicely. Hand wash only, I know some people put them in the dishwasher but I never have. I have not used for hot beverages only cold.

Amazing cup for less than 20 dollars! We have about 7 of these in various colors now. Record for holding ice with refills is 4 days. We use them for all day outdoor events (in Florida) and ice has stayed the whole day, even with opening and refilling. I used one time with hot chocolate over our "winter" and it stayed hot way to long .. had to drop some ice cubes in to cool it down enough to be able to drink it. The spill proof lid is indeed spill proof! We have had kids throw full cups to each other and not a drop was dripped. The lid with the straw is also very spill resistant. The only part that leaks is the actual straw, but it does a great job if dropped to give you the moments needed to pick it up without dumping it's contents everywhere. Sturdy all around. They go to work with us as well and are dropped .. and so much more and still keep going. For the price - these cannot be beat! The colors are pretty true to display in listing.. so far only one has been off colors of what was shown. (If you pick the "rusty red" - it is pink.)

This 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.

I have been looking for a smaller travel mug for a while. Most are too large and if they were filled I wouldn’t be able to hang on to them. This 16oz mug is perfect and manageable. The fact it can be adapted for cold or hot is just that much better.

My coffee stays hot all day long and I can almost fit the entire pot in this 40 ouncer. I also have the 30 ouncer but it’s hard to hold without the handle. Get the ones with the handle!

Awesome thermos. No leaks. Keeps tea super hot for hours and hours. Great volume. Love it.

I purchased one of the 1.2ltr mugs in the Aurora design. I read many reviews first, and decided to try and add to my ever growing collection of travel mugs. Before officially using it, I decided to put it through a couple days of tests, first. DESIGN It looks good, is a good size, and so far I have found nothing of concern. I haven't had opportunity to check it's size in a cup holder, yet, but it appears like it should fit. Also a good size for cleaning without any issues. LEAK PROOF: CLOSED LID - I added a basic mugs worth of water in, fastened the lid, and held the mug upside down. Not a single drop. I shook it, and tipped it upside down again. Still no leaks. I then filled the mug entirely, and did the same thing to see if the volume of water made a difference. Result: still leak proof. STRAW LID - Obviously, given the design and function of a straw, when the straw is inserted it means it is not leak proof. Without inserting the straw, I tried the same tests, and while there are is some leakage, it is very very minor and a slow drip. Therefore, if the mug tips without the straw inserted, you have plenty of time to correct it before there is any significant loss of liquid. The mug also comes with two sturdy, but not entirely inflexible reusable plastic straws. SMELL/TASTE: All food/drink containers tend to smell or taste funny when brand new. I found that by doing my early days testing, that issue was non existent by the time it came to actual use. HOT DRINKS: I filled the mug with freshly boiled water, and tightened the lid. Every couple of hours I would pour a small amount into a bowl and dip my fingers to test the temperature. Doing this also meant that there was space for air to effectively cool the rest down a little quicker. That said, after a brilliant 13 hours, I still had very hot water, which satisfied my curiosity. I probably should have left it longer until the water actually cooled, but I personally wouldn't keep a hot drink for that long anyway, so it was more than enough for me. **Edit to add: I forgot about my drink one day, and it was still of a nice warm drinkable temperature after 24 hours. Absolutely thrilled. COLD DRINKS: I filled the mug with cold water, and added three good sized ice cubes, and tightened the lid. As with the hot water, I checked every couple of hours. The ice cubes melted within a couple of hours, but that wasn't a big problem for me - it made sense given the rest of the water was already of a warmer temperature. However, after 24 hours the water was still nice and cold - not necessarily ice cold, but absolutely cooler than lukewarm and still nicely refreshing. Due to disability I don't venture out too often so have yet to comment on it's ease of carry, but using it around the home is easy enough and I absolutely don't foresee any problems. Similarly, durability can't be judged as yet as it is still rather new to me. However, all in all, it is a fantastic product and great value for money. I am hoping to purchase more, in time.