The best travel mugs, tested and reviewed

Best overall: Zojirushi SM-SE Travel Mug

Pros: Best temperature retention by far, lid is easy to clean, leak-proof locking lid, one-handed operation, five-year warranty on the vacuum insulation

Cons: Not dishwasher safe, won't fit large ice cubes, will rattle around in cupholders

It's rare that we at Insider Reviews come across a product that is so head and shoulders above the competition that it's without a doubt the best overall pick; there's almost always a shortcoming or a caveat. But the Zojirushi SM-SE Travel Mug is, hands down, the best travel mug you can buy, and we've got the data to back it up.

According to our test, the Zojirushi kept coffee hot for five hours longer than the next-best mug and kept ice frozen for an hour and a half longer than second place. Les Shu, Insider Reviews senior guides editor who helped me with secondary testing, found that it kept liquids hotter far longer if you don't open the lid as often.

The lid flips open to reveal a sizeable drinking spout that regulates liquid well, whether you're pouring it into a cup or your mouth. When closed, a switch at the base of the lid locks it shut so you can confidently toss it in your bag.

The lid disassembles into two plastic pieces and two rubber gaskets, so you can get into all the nooks and crannies as you clean it. It's a skinny mug too, so you'll want to invest in a good bottle brush. Because it's so skinny, you may have trouble fitting large ice cubes into it. It may also rattle around in your car's cupholder. But we're being nitpicky here.

If you want the best travel mug to keep your coffee hot the longest and provide the best drinking experience, this is your pick. Zojirushi also offers a five-year warranty on the vacuum insulation, so if your mug loses its ability to retain temperature, Zojirushi will replace it.

Best with a carry loop: Hydro Flask Coffee with Flex Sip Lid

Pros: Rubber carry loop, comfortable to drink from, lid disassembles easily, dishwasher safe, lifetime warranty

Cons: Retained coffee smell, rubber loop may not be durable enough for attaching to packs

As much as I love the Zojirushi mug, it can get annoying to carry it around if you're roaming around bag-free or just don't have anywhere to stow it. The Hydro Flask Coffee helps mitigate this problem with the addition of a sturdy rubber carry loop. While walking around with it, I primarily held onto the loop with one or two fingers.

The Hydro Flask also provided one of the nicest drinking experiences of all the mugs we tested. The lid mechanism is simple, the liquid flows well, and there's no large lid mechanism to get in the way while you're drinking. When closed, the lid reveals a red square so you can quickly see that your mug is sealed. The lid disassembles into three plastic pieces and one rubber gasket.

We did find that the stainless steel retained some coffee smell after repeated use, so you may want to dedicate this mug to one type of beverage.

While the lid system does a good job of keeping it sealed, it does require two hands to open. If you're jostled while the lid is open, you might encounter a small spill. This was a rare occurrence, but drivers and commuters may want to keep this in mind.

This was a tough call in our best travel mug with a carry loop  The Klean Kanteen Insulated TKWide actually beat out the Hydro Flask in both temperature tests, albeit by small margins, and we like the metal carry loop for durability. But the Klean Kanteen lid is difficult to disassemble for proper cleaning, and the metal carry loop is uncomfortable if you're carrying it by hand. The Hydro Flask just offered a nicer drinking experience. 

Best flip-top: Miir Travel Tumbler

Pros: Simple lid is easy to clean, stays leak-proof even after repeated use

Cons: Too large for some cupholders, handwash only, won't keep ice frozen for very long

We disqualified more than one travel mug simply due to their exceedingly complicated lid mechanisms. A lid that's too hard to disassemble and clean will discourage you from washing it properly which can lead to mold growth. Flip-top lids are often one piece and the most simple, so mold has nowhere to hide.

The best flip-top travel mug we tried was the Miir Travel Tumbler. (We did love the S'well Commuter, but it's no longer available for purchase.) It was competitive in both our hot and cold temperature retention tests, despite the thinner construction that makes it easier to fit in cupholders. 

The flip-top was is slightly stiff and lies almost flush with the lid, so it's not the easiest to open. However, it preserves the benefit of the flip-top by being a breeze to clean.

Best spill-proof: Stanley Classic Trigger Action Travel Mug

Pros: Automatically seals when not in use, dishwasher-safe, lifetime warranty

Cons: Hand may get in the way while drinking, middling temperature retention

Even the most leak-proof mug is going to spill if you knock it over while the lid is open. If you know you're prone to spills or simply have too many important papers on your desk at any given time, do yourself a favor and invest in a mug that's totally klutz-proof.

The Stanley Classic Trigger Action Mug automatically seals when not in use, helping to retain temperature as well as ensure all your coffee stays where it's supposed to. To drink, you simply press and hold down the button on the lid which depresses the stopper in the spout and lets liquid flow. Upon releasing the button, the stopper raises back up to seal the spout. 

The Stanley performed admirably in our temperature tests — firmly middle of the pack. The lid mechanism is a bit complicated, with buttons and springs, so you'll want to regularly disassemble it and get into the nooks and crannies with a brush to ensure it doesn't harbor mold, especially around the metal spring. It disassembles into two pieces with a simple twist.

The main disadvantage to this mug is also its main draw — you have to press the button to drink. The button is positioned on the back of the lid, so you may find your own hand gets in the way of drinking, especially if your hand is larger. The button is also why this is one of Les Shu's favorites, who has been using it nonstop since early 2019.

Best large-capacity: Yeti Rambler Bottle with HotShot Cap

Yeti 26-oz. Rambler Bottle

Yeti HotShot Cap

Pros: Offered in larger sizes than any other mug we tested, retains heat very well, dishwasher safe, very sturdy build

Cons: Retains cold poorly, HotShot lid sold separately, HotShot lid gives no visual indication that it's open, definitely won't fit in cupholders

The Yeti Rambler Bottle comes in smaller 12-oz. and 18-oz. offerings, but the unique 26-oz. model is what caught our eye for best travel mug testing. Most of the travel mugs we recommend come in multiple sizes, but they all max out at 20 ounces. If you're used to guzzling large amounts of your beverage of choice, and you can't be bothered with a refill, you'll want a travel mug to match your habits.

The Rambler Bottle comes with what Yeti calls its Chug Cap — think classic soda bottle top with a large-handled lid that twists all the way off. It's great for water, iced coffee, and other cold drinks, but if hot beverages are your main priority, you'll want to buy the HotShot Cap which is sold separately.

Senior Guides Editor Les Shu and I were split in our feelings on the HotShot. He appreciates the inner wall and the tight lock that keep spills at bay, while I was disappointed that it gave no visual indication that it was open or closed.

If by some chance, 26 ounces isn't enough coffee to get you going in the morning, Yeti also offers a huge 36-oz. Rambler Bottle.

What to look for

Temperature retention: The most important factor in our tests is the key element of the best travel mug: does it keep your hot drink hot and your iced drink cold? The only way to know for sure if to test the mugs like we did, but you can also look for words like vacuum sealed and double-layer walls.

Lid type: All lids should be relatively spill-proof, but there are different style choices like those with carry-loops, flips tops, or screw tops. If you want to use your travel mug with one hand, choose a flip-top lid or one that opens with a button. Additionally, if you plan on using a carabiner to clip your bottle to a backpack, look for a carry loop.

Size: One consideration is how much coffee or tea you want to transport and how heavy a mug you're willing to carry. Those going through two or three cups of coffee each morning should go for a 16- or 24-ounce travel mug, but keep in mind that it's bound to be hefty. Additionally, car commuters will benefit from slimmer bottles that are more likely to fit in cupholders. 

Our temperature retention test results

 

How we tested

In order to test the best travel mugs, we established several criteria we hoped each of our top picks would meet. Our initial testing period lasted one month, but we are still testing long-term durability in case issues arise. 

Temperature retention: To test heat retention, we filled each mug with water heated to 136 degrees Fahrenheit, the optimal temperature for hot beverages according to a study by the University of Texas. We then tested the temperature hourly and noted change. Once the temperature dropped 25 degrees, we deemed the beverage too cold to drink and ended the test. To test cold retention, we filled each mug with 45-degree water straight from the refrigerator. We added three ice cubes and timed how long the ice remained frozen.

Leak test: We filled each travel mug with water and turned it upside down and shook it for a total of 30 seconds. We performed this test once at the beginning of our testing period and again at the end to ensure each mug stayed leak-proof even after repeated use.

Ease of use and cleaning: We wanted to test how easy each mug was to drink from while on the go. We noted how easy each mug was to operate with one hand. We also noted how well the liquid flowed out of each and whether or not they fit in standard car cupholders. We took into account how easy each mug was to clean. Many of these mugs have complex lids that can harbor mold if not properly sanitized. If lids were too complicated, difficult to disassemble or reassemble, or began to show signs of mold even after what we thought was a thorough cleaning, the mug lost major points.