The 10 Best Lunchboxes for Kids and Adults That Will Keep Food Fresh for Hours
As a teacher and a mom of two, I’ve been packing school lunches nearly every day for over 12 years. I rely on them to keep my and my girls’ food fresh and safe for hours, especially on the days I pack them early in the morning and need them to stay cool or warm until noon. Unfortunately, not all lunchboxes keep food at a safe temperature that long, which can result in potential illnesses.
The best lunchboxes feature insulation to keep food warm or cool, a capacity big enough to fit all the essentials, and surfaces made of an easy-to-clean material. To find the best ones, we asked our writers and editors for their top recommendations, then we determined whether our picks are best for commuting, summer camp, work, and more. We also spoke with a family physician and a registered dietitian to learn more about what to look for in lunchboxes and how to ensure that food stays at a safe temperature for hours. Our list includes options we bought and used for years, as well as lunchboxes we tested and would recommend to our loved ones (and you!) without hesitation.
Our Top Picks for the Best Lunchboxes
- Best for commuters: RTIC 8-Quart Road Trip Personal Cooler
- Best bento box for kids: OmieBox Bento Box
- Best insulated food jar for kids: b.box Insulated Food Jar
- Best insulated food jar for adults: Built Insulated Food Jar
- Best for summer camp: Bentgo Kids Stainless Steel
- Best for work: Easyfun Lunch Bag for Adults
- Best for little kids: Bentgo Kids Lunch Box
- Best for big kids: OmieBox Up
- Best stainless steel: Pura Lunch Containers
- Best kids’ lunch bag: Bentgo Kids Print Lunch Bag

Best for Commuters
RTIC 8-Quart Road Trip Personal Cooler
Pros
- Large capacity
- Durable, easy-to-clean material
- Keeps food cold for hours
Cons
- Locking handle feature is tricky at first
Key Specs
- Capacity: 8 quarts
- Material: Plastic
- Ease of cleaning: Hand-wash
“I tested this lunch cooler about two years ago, and it was awesome!” says editor Katrina Cossey. “It’s a great size if you work long hours and need something to keep your food cool all day.” The thick insulated walls maintain cold temperatures even in the sun, and the sturdy design is durable enough for regular use.
Its portability makes it the best option for commuters, whether traveling by train or in a car to work or class. The handle doubles as a lock: Lift it to secure the cooler, and fold it down to open it. It’s a handy feature, but it can occasionally be finicky if the handle isn’t fully up or fully down. Once you get used to it, however, it’s easy to operate.

Best Bento Box for Kids
OmieBox Bento Box
Pros
- Multiple compartments
- Built-in insulated thermos
- Leakproof design
Cons
- No internal ice pack
Key Specs
- Capacity: 8.5 ounces
- Material: Rubber, stainless steel
- Ease of cleaning: Hand-wash
Packing school lunches can get old fast, especially when you’re stuck choosing between only hot or cold food — but that’s where the OmieBox saves the day. It has a built-in insulated thermos and multiple compartments that let you send warm and cold food together, all in one box. “Pasta stays warm in the thermos, and his food stays well separated,” shares editorial director Simone Scully, whose son uses this bento box. As parents who have experienced leaky lunches many times, we’re thankful that this one keeps everything contained.
While we wish it were dishwasher safe, it’s a solid lunchbox for kids. “It’s easy to use, can be carried on its own as a lunchbox or fit into a larger lunchbox (which is what my daughter likes to do), and it keeps food hot and cold for hours,” says editor Ashley Ziegler, whose kiddo also uses this lunchbox. Plus, it comes in fun color combinations that our kids loved.

Best Insulated Food Jar for Kids
b.box Insulated Food Jar
Pros
- Removable handles
- Retains heat well
- Dishwasher safe
Cons
- Wide design
Key Specs
- Capacity: 11 ounces
- Material: Stainless steel
- Ease of cleaning: Dishwasher-safe
Some insulated food jars we’ve tried either lose heat too quickly or take up too much room in a lunchbox, but this b.box pick provides a great balance. It offers reliable insulation and has a nice design that makes it stand out from the rest. The lid features handles and a bumper, making it easier for kids to open, while keeping the jar protected in backpacks or lunch bags.
The jar is dishwasher-safe, and we love that the stainless steel doesn’t hold smells either. While the design is wider than other insulated food jars for kids, we still recommend it because it retains heat well, fits easily in a lunchbox, and helps kids feel independent at school.

Best Insulated Food Jar for Adults
Built Insulated Food Jar
Pros
- Wide-mouth opening
- Soft rubber grip on exterior
- Leakproof
Cons
- Lid can be tough to open
Key Specs
- Capacity: 16 ounces
- Material: Stainless steel
- Ease of cleaning: Hand-wash
The Built Insulated Food Jar is our top pick for adults due to its large 16-ounce capacity and ability to hold heat throughout the day. Plus, it’s dishwasher-safe, which is practically a requirement for busy adults.
We love how well it keeps food warm or cold for hours (yes, it does both). Our kiddos have also used this food jar when theirs were dirty. Just note that it might be harder for smaller kids to open. That said, as long as we we didn’t put the lid on too tightly, we had no issues. There’s a soft rubber grip on the exterior, which makes it easier to hold the jar while twisting off the lid. It’s also fully leakproof; we’ve never had our lunches leak from the jar while into our bags. And the wide-mouth opening is a useful feature that leaves plenty of room to maneuver a fork or spoon for just the right bite.

Best for Summer Camp
Bentgo Kids Stainless Steel
Pros
- Multiple compartments
- Stainless steel is durable
- Fun prints
Cons
- Material is heavier than plastic
- Latches may be difficult for some kids
Key Specs
- Capacity: 40 ounces
- Material: Stainless steel
- Ease of cleaning: Dishwasher-safe
If you want a lunchbox container that will last through summer camp and beyond, look no further than the Bentgo Kids Stainless Steel Lunch Box. The material is durable, making it suitable for everything from school lunch tables to picnic tables at the zoo. Kids love the playful designs, like unicorns or dinosaurs, which easily make lunchtime more exciting. Its durability, organization, and style are why we chose it as a top pick for summer camp lunchboxes.
The three compartments and a removable silicone container allow you to pack various items, such as a sandwich, fruit, and nuts. “The lunchbox doesn’t have any internal cooling features or ice, like some of the others I tried, but it does stay pretty cool if you pack it in a lunch bag with some ice packs,” says Scully. Be sure to include at least two ice packs to keep perishable foods at a safe temperature until lunchtime.

Best for Work
Easyfun Lunch Bag for Adults
Pros
- Stylish design, available in multiple colors
- Keeps food cold for hours with ice packs
- Large capacity holds containers and more
Cons
- Open side pockets
- Slightly bulky
Key Specs
- Capacity: 11 liters
- Material: Polyester
- Ease of cleaning: Hand-wash
I’ve been using this insulated lunch bag nearly every day for the last two years, and it’s quickly become my go-to choice for work lunches. It’s the perfect size, and I love that it keeps my food, like a ham sandwich, cold as long as I add ice packs. I also like how cute it looks, which makes carrying it a little more fun than some other adult lunchboxes. Cleaning is simple — I can just wipe it down on the inside for a quick clean.
Packing meals is a breeze, with a main compartment that offers ample room for my favorite foods, plus side pockets for other needs like silverware or a piece of gum. I can quickly toss in several items, zip it up, and head out the door each morning. The design makes it easy to grab and go, which saves time when things get hectic.

Best for Little Kids
Bentgo Kids Lunch Box
Pros
- Five compartments of various sizes
- Lightweight design
- Dishwasher-safe
Cons
- Compartments are too small for older kids
- Minimal insulation without ice packs
Key Specs
- Capacity: 19.2 ounces
- Material: Plastic
- Ease of cleaning: Dishwasher-safe
“What I like most is that it’s very easy to clean,” says Sabrina Rojas Weiss, an editor and parent whose 12-year-old son handpicked this lunchbox. “Most of the time, you just need to wash the insert, but you should definitely wash the rest of it regularly too.” While the compartments are likely too small for teenage kids, Weiss’s son “liked the idea of having a lot of different compartments for his food.” Weiss also mentioned that it made him excited to pack different snacks.
The lunchbox by itself is not heavily insulated, so we recommend using ice packs or packing room-temperature foods that don’t need to stay hot or cold. Still, for preschoolers and elementary-school-age kids who love variety and snack-style lunches, this is a really great option.

Best for Big Kids
OmieBox Up
Pros
- Hot and cold flexibility
- Easy to open
- Roomy compartments
Cons
- Heavy feel
- Bulky
Key Specs
- Capacity: 39.3 ounces (lunch box), 12 ounces (insulated food jar)
- Material: Plastic
- Ease of cleaning: Dishwasher-safe
“This lunchbox comes with a small ice pack below the compartments that helps keep those berries (or kiwis, grapes, cheese — you name it) cool all day long, even right next to a thermos full of warm pasta,” says Scully. It gives you peace of mind, knowing that the food will remain at a safe temperature until lunchtime.
Our only issue is that just the inner tray is dishwasher-safe; all of the other pieces must be hand-washed.

Best Stainless Steel
Pura Lunch Containers
Pros
- Durable stainless steel
- Silicone strap doubles as extra lid protection
- Dishwasher-safe
Cons
- Leaky dividers
- Limited sealing
Key Specs
- Capacity: 16.6 ounces (small) and 27 ounces (large)
- Material: Stainless steel
- Ease of cleaning: Dishwasher-safe
If you want a lunchbox that is long-lasting and easy to clean, you won’t want to miss these Pura Lunch Containers. The 100 percent stainless steel is durable and safe for daily use. “From a medical and food-safety perspective, stainless steel is one of the safest materials for daily use because it doesn’t leach chemicals, resists bacterial buildup, and can be thoroughly cleaned and sanitized,” says Kristi Ruth, RDN, a registered dietitian in Pennsylvania and owner of Carrots and Cookies.
We appreciate the separate containers for various snacks or for your main dish and a side. An elastic band secures the outside to prevent leakage during transport. “However, there were times when it leaked, and my son struggled to get the bands on himself after he was done,” Scully notes. On the plus side, these lunch containers are dishwasher-safe and oven-safe.

Best Kids’ Lunch Bag
Bentgo Kids Print Lunch Bag
Pros
- Water-resistant fabric
- Multiple pockets
- Insulated interior
Cons
- Slightly bulky
Key Specs
- Capacity: 4.5 liters
- Material: BPA-free nylon PEVA polyester
- Ease of cleaning: Wipe clean
One of the best lunch bags for kids is this Bentgo pick, which comes in a wide range of colorful prints that make it easy for kids to spot and show off at school. “My son has used this lunch bag for school every day for the past two years!” Cossey says. “It’s incredibly durable, and I appreciate the carrying options (a top handle and a strap).” The top handle unclicks to attach to a backpack for easier portability.
It also has an insulated interior to keep food at a safe temperature for hours. We just recommend popping in ice packs. It’s also easy to clean. “I prefer machine-washable lunch bags, such as those made by Vera Bradley, or lunchboxes with a smooth lining so they’re easier to wipe down,” Ruth says. “Once you notice wear and tear in the lining, it’s time to find a new lunchbox.”
There’s a side pocket that’s big enough for a bottle of water or snacks. We appreciate that it’s big enough to hold a lunch container, a thermos, utensils, and maybe some small snacks, thanks to an interior zipper pocket. Although it does feel slightly bulky, and the zipper can be tricky at times, we still think it’s ideal for school-age kids who pack full lunches.
Comparison Table
Other Lunchboxes We Tested
- Bentgo Chill Kids Lunch Box We love how this leakproof kids’ lunchbox includes multiple compartments for various foods and features a full-sized, removable ice pack. However, this lunchbox doesn’t offer hot and cold flexibility like some others on our list.
- PackIt Freezable Playtime Lunch Box This PackIt Lunch Box is simple for kids to use, but we appreciate how the Bentgo Kids Lunch Bag offers multiple portability options.
- Lalo Bento Box We’re fans of stainless steel for its ease of cleaning, so the Lalo Bento Box deserves an honorable mention. But the lid doesn’t secure as well as other similar picks on our list.
- Fit+Fresh Bloomington Lunch Bag This Fit+Fresh Lunch Bag resembles the EasyFun pick on our list, but it’s slightly smaller. We think EasyFun’s larger capacity ensures that you can fit everything you need in your lunchbox for a full day.
- JoyYum Bento Box for Kids We admit that this bento box is impressive with four compartments, one of which can hold the included thermos. Unfortunately, the thermos doesn’t keep food warm as long as we’d like.
- b.box Lunchbox Multiple compartments, a built-in carrying handle, matching pieces — there’s a lot to love about this b.box Lunchbox. However, it’s on the bulky side, and we had trouble fitting it into some of our kids’ lunch bags.
How We Chose the Best Lunchboxes

To compile this list, we considered 24 lunchboxes that we’ve either tested or owned for months or years, including bento boxes, lunch bags, and more, before narrowing the list to the top 10. We and our kiddos used these lunchboxes for school, work, and more to assess how well they held up and how fresh food stayed inside them. We also considered the material, ease of cleaning, and capacity.
We also spoke with Kevin Gendreau, MD, a double board-certified obesity and family medicine physician at Signature Healthcare in Massachusetts, and Kristi Ruth, RDN, a registered dietitian in Pennsylvania and owner of Carrots and Cookies, to learn more about what to look for in lunchboxes and food safety. I also brought my own experience as a mom and teacher, having observed numerous students’ lunch routines and how quickly meals can become unappealing when they don’t stay cool or warm as they should.
Based on these tests, our personal experience with lunchboxes, and our experts’ guidance, we selected the lunchboxes that performed best at keeping food at safe temperatures, were easy to maintain, and offered durable material for everyday use.
What to Look for When Buying Lunchboxes
When shopping for the best lunchbox, focus on materials, capacity, and ease of cleaning. Knowing what matters most in each area will help you find a lunchbox that fits your routine and keeps your meals fresh and easy to pack.
- Material The material affects how easily you can keep it clean, how long food will stay fresh, and how heavy it feels. “Stainless steel tends to be cleanest and holds temperature better, especially for thermos foods,” says Dr. Gendreau. However, we also tested and used some plastic lunchboxes and insulated lunch bags, and we found that those work just as well with ice packs.
- Capacity It matters because it affects how practical a lunchbox is day-to-day. Too small, and you’ll need extra bags; too big, and it can be bulky in backpacks or lockers. “Don’t forget to make sure it has room for ice packs in addition to lunch containers (or a thermos),” Ruth says. The right size holds a full meal — and ice packs — without wasted space.
- Ease of Cleaning A lunchbox should be quick and easy to clean. Removable liners or trays, smooth interiors, and dishwasher-safe materials make cleaning easier. “A good rule of thumb? If it’s annoying to clean, it probably won’t get cleaned consistently, especially on busy school nights,” explains Gendreau. In particular, avoid designs with small crevices where tiny food particles can become trapped.
What’s the Best Material for a Lunchbox?
How Long Can a Lunchbox Keep Food at a Safe Temperature?
FAQ
Why Trust Everyday Health

Jacquelyn Smith
Author
Jacquelyn Smith is a writer who covers parenting, wellness, pregnancy, and general health. She is also a former public school elementary educator, a professional artist, and the cu...

Reyna Franco, RDN
Medical Reviewer
Reyna Franco, RDN, is a New York City–based dietitian-nutritionist, certified specialist in sports dietetics, and certified personal trainer. She is a diplomate of the American Col...

Daniel Oakley
Fact-Checker
Daniel Oakley is a journalist, editor, and fact-checker. He has written, edited, taught, and produced media for Dow Jones, S&P Global, IHS Markit, Third Coast Studios Magazine, and...

Katrina Cossey
Editor
Katrina Cossey is a writer and editor with over 10 years of experience in broadcast and service journalism. Over her career, she’s covered topics such as the COVID-19 pandemic, new...

Katrina Cossey
Tester
Katrina Cossey is a writer and editor with over 10 years of experience in broadcast and service journalism. Over her career, she’s covered topics such as the COVID-19 pandemic, new...

Simone Scully
Tester
Simone Scully is the editorial director for service commerce and marketplace content at Everyday Health. She has nearly 15 years of experience as a professional health and science ...

Sabrina Rojas Weiss
Tester
Sabrina Rojas Weiss has been a writer and editor for more than 25 years, 12 of which she's spent in the health and parenting space. Her work has appeared in Parents, Verywell, Yaho...

Ashley Ziegler
Tester
Ashley Ziegler is a full-time writer with extensive experience covering women’s health, babies' and kids' health, mental health, and wellness. Her work has appeared on websites inc...
- “Danger Zone” (40°F - 140°F). U.S. Department of Agriculture. June 28, 2017.
- Keeping “Bag” Lunches Safe. U.S. Department of Agriculture. July 25, 2025.
- Leftovers and Food Safety. U.S. Department of Agriculture. July 31, 2020.
- Milestones by 4 Years. Centers for Disease Control and Prevention. September 11, 2025.
- Nutrition for Kids: Guidelines for a Healthy Diet. Mayo Clinic. April 16, 2025.
- Keeping Lunch Cool: The Chemistry of Lunch Boxes. Chemical Safety Facts. August 17, 2022.
- Preventing Food Poisoning. Centers for Disease Control and Prevention. November 24, 2025.
- Handling Food Safety While Eating Outside. U.S. Food and Drug Administration. March 5, 2024.