Kids’ lunches lead a hard life. They get dropped, shoved in a backpack, and opened by small hands with five minutes to eat. A good kids lunch box survives all of that and keeps the applesauce away from the sandwich. Just as important, your child has to be able to open it alone.
Bentos have taken over this category, so most picks here have compartments. The word “leak-proof” appears on nearly every listing, and it does not always mean what you would hope. We attribute each leak and dishwasher claim to whoever made it, and we point out where an independent reviewer found otherwise. For a wider look at grown-up boxes, see our best bento box guide.
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Quick verdict: which kids lunch box to buy
For ages 3 to 7, the Bentgo Kids Lunch Box is the one to buy: five compartments, a latch made for little hands, and it passed BabyGearLab’s leak check. For big kids and teens, Bentgo says ages 8 and up for the larger Bentgo Pop. For hot food, the OmieBox UP keeps soup in a built-in jar next to the cold food, and the maker recommends it for 9 and up.
Five kids lunch boxes at a glance
Five standout picks, one for each kind of eater, with each maker’s age guidance and leak wording. All seven are reviewed in full below.
| Lunch box | Best for | Maker’s age | Leak wording | Buy on Amazon |
|---|---|---|---|---|
Bentgo Kids Lunch Box, 5 CompartmentBest overall
|
Early grades | 3 to 7 | Leak-proof | View on Amazon |
Bentgo Pop Lunch Box, 5 CupBest for big kids
|
Bigger appetites | 8 and up | Leakproof | View on Amazon |
OmieBox UP Insulated Bento BoxBest for hot lunch
|
Hot lunch | 9 and up | Removable seals | View on Amazon |
Yumbox Original Bento Lunch BoxBest for wet foods
|
Yogurt and dips | Not stated | Leakproof | View on Amazon |
LunchBots Medium Quad Stainless BentoBest for dry foods
|
Dry foods | Not stated | Not watertight | View on Amazon |
Our picks for the best kids lunch box
1. Bentgo Kids Lunch Box, 5 Compartment – Easy Latches for Little Hands
Bentgo’s original kids’ box has five compartments that hold 2.4 cups in all, and Bentgo sizes it for ages 3 to 7. Rubber-coated edges take the drops, and the latches are designed for small hands. It measures about 8.5 x 6.5 x 2 inches, so it fits in a backpack.
Bentgo calls it leak-proof. BabyGearLab agreed, saying it is leak-proof and easy to open and close, though the capacity best suits younger children and the box placed low in its overall scores. We picked it for the exact age it fits.
The removable tray is microwave and freezer safe, and top-rack dishwasher safe. Bentgo recommends washing the outer shell by hand. Materials are BPA and PFAS free, per the maker.
Why we like it
- Passed BabyGearLab’s leak check
- Latches made for little hands, per maker
- Rubber-coated edges for drops
- Tray goes in microwave and dishwasher
Key specifications
| Model | BGOKIDS-G (green) |
|---|---|
| Compartments | 5 |
| Capacity | 2.4 cups |
| Material | BPA- and PFAS-free materials, per maker |
| Maker’s age guidance | 3 to 7, per listing |
| Leak wording | Leak-proof, per Bentgo |
| Cleaning | Tray top rack; hand wash shell |
| Hot or cold | Cold or room temperature; tray microwaves |
Why we recommend it
It suits preschool and early elementary children who want to open their own lunch and eat small amounts of several things.
Skip it for a big eater or a child over 7, since Bentgo’s own Pop is sized for that.
Pros and cons
Pros
- Independent leak result
- Good fit for young hands
- Simple to pack
Cons
- Small for older kids
- Shell is hand wash
- Scored low overall at BabyGearLab, chiefly on size
2. Bentgo Pop Lunch Box, 5 Cup – Double the Size for Bigger Kids
Once the Kids box runs short, this is the natural next step. The Pop holds 5 cups, double the Kids box, across three or four compartments with a removable divider. Bentgo lists it for ages 8 and up and teens. It measures about 9.7 x 7.8 x 2.7 inches.
The contoured lid seals each section, says the maker, and one locking clip holds it shut. The tray is safe in the microwave and on the top rack of the dishwasher, and the whole box can go in the freezer. Note that the leak claim here is Bentgo’s: we found no independent test of this model.
Why we like it
- 5-cup capacity
- Removable divider
- Single locking clip
- Whole box can go in the freezer
Key specifications
| Model | BGOPOP-NB |
|---|---|
| Compartments | 3 to 4 |
| Capacity | 5 cups |
| Material | BPA-free materials, per maker |
| Maker’s age guidance | 8 and up, per listing |
| Leak wording | Leakproof, per Bentgo |
| Cleaning | Tray top rack |
| Hot or cold | Tray microwaves |
Why we recommend it
It suits tweens and teens who have outgrown compartments for grapes and want a real sandwich in there.
Skip it for younger kids, since Bentgo itself sets the age at 8.
Pros and cons
Pros
- Fits a full lunch
- Flexible layout
- Freezer friendly
Cons
- Large in a small backpack
- No independent test found
- Not insulated
3. OmieBox UP Insulated Bento Box – Hot and Cold in One Box
OmieBox UP keeps soup or rice warm and strawberries cool in the same box. A built-in 12-ounce thermal jar in 18/8 steel sits beside a cold section with a removable ice pack. Omie says food stays warm for up to 4 hours. The maker recommends it for ages 9 and up, and warns of care with hot food.
Everything is dishwasher safe, and the seals come out so you can wash them, with replacements for sale. One caution: BabyGearLab tested the original OmieBox, not this one, and found some liquid got out when it was tilted, and that its jar did not keep food warm as hoped. So fill the jar with hot water first and test it with your own meal.
Why we like it
- 12-ounce thermal jar
- Removable ice pack
- Seals can be removed and replaced
- Dishwasher safe, per maker
Key specifications
| Model | OMUP |
|---|---|
| Compartments | Jar plus bento tray |
| Capacity | 12 oz jar |
| Material | 18/8 steel jar; BPA-free, per maker |
| Maker’s age guidance | 9 and up, per listing |
| Leak wording | Removable seals; see review note |
| Cleaning | Dishwasher safe |
| Hot or cold | Hot and cold together |
Why we recommend it
It suits older kids who want last night’s dinner hot at noon, without carrying two containers.
Skip it for younger kids, because the maker gives 9 and up and warns about hot food.
Pros and cons
Pros
- One box for hot and cold
- Replaceable parts
- Good size for older kids
Cons
- Sibling model had leak and warmth issues at BabyGearLab
- Bulkier than a tray box
- Hot food handling needs care
4. Yumbox Original Bento Lunch Box – One Lid Seals Every Section
Yumbox’s design is a silicone-lined lid that seals each compartment on its own, which Yumbox says keeps yogurt, dips and applesauce from leaking between sections. It has five food compartments and a dip section, and a compact size of about 8.5 x 6 x 1.8 inches.
The removable tray goes on the top rack, and the maker says the materials are BPA free and independently safety tested, without naming the test. The latch is described as easy to open. The listing gives no age. We could not find an independent leak test of this model in the review we read, so the claim is the maker’s.
Why we like it
- Silicone-lined lid seals each section, per maker
- Five compartments plus a dip section
- Removable tray goes on the top rack
- Compact and light
Key specifications
| Model | Original |
|---|---|
| Compartments | 6, counting the dip section |
| Capacity | Not stated |
| Material | BPA-free materials, per maker |
| Maker’s age guidance | Not stated |
| Leak wording | Leakproof, per Yumbox |
| Cleaning | Tray top rack |
| Hot or cold | Not stated |
Why we recommend it
It suits kids who pack yogurt and saucy sides, and parents who like small, separate portions.
Skip it if your child needs big portions, because the sections are small.
Pros and cons
Pros
- Wet foods stay separate, says the maker
- Clear system
- Small enough for any bag
Cons
- No independent test found
- No stated age
- Not insulated
5. LunchBots Medium Quad Stainless Bento – Plain Steel, Honest About Leaks
LunchBots makes the simplest box here. The Quad is one piece of 18/8 stainless with four sections and a dot-design cover, 20 ounces in all, at about 6 x 5 x 1.8 inches. Only steel touches the food, according to the maker.
It tells you the limit: the lids and dividers are not watertight, so pack only dry foods. BabyGearLab’s top kids pick is a different LunchBots box, the Bento Cinco, for its durability and easy cleaning, and it also notes the lack of leak-proofing and insulation. That is a fair description of what you are buying. The seller shown is Everware Market.
Why we like it
- 18/8 stainless is all that touches food
- BabyGearLab’s top pick is from this line
- Small and tough
- Listing is honest about wet foods
Key specifications
| Model | SS-QUAD |
|---|---|
| Compartments | 4 |
| Capacity | 20 oz |
| Material | 18/8 stainless |
| Maker’s age guidance | Not stated |
| Leak wording | Not watertight, per LunchBots |
| Cleaning | Not stated in this listing |
| Hot or cold | Not insulated |
Why we recommend it
It suits kids who eat sandwiches, crackers, fruit and nuts where allowed, and parents who want no plastic touching lunch.
Skip it for anything wet, because the maker itself says dry foods only.
Pros and cons
Pros
- Very simple
- Durable material
- Easy to clean, per BabyGearLab on the Cinco
Cons
- Not for wet foods
- Not insulated
- Third-party seller
6. Simple Modern Kids Bento Box – Push-Button Closure for Preschool
Simple Modern’s bento is for the youngest kids, and the maker says it is approved for ages 3 and up. It has a removable three-compartment insert and a push-button closure in place of a latch, which may suit some hands better. It is about 8.2 x 5.5 x 2.3 inches.
Simple Modern calls it leak resistant, not leak-proof, and says the button helps minimize leaks. We respect the wording. The insert goes on the top rack and in the microwave for up to 3 minutes, and the case should be washed by hand.
Why we like it
- Maker gives ages 3 and up
- Push-button closure
- Insert microwaves up to 3 minutes
- Coordinates with the maker’s lunch bags
Key specifications
| Model | PBB-3-SHB-M |
|---|---|
| Compartments | 3 |
| Capacity | Not stated |
| Material | BPA-free plastic, per maker |
| Maker’s age guidance | 3 and up, per listing |
| Leak wording | Leak resistant, per maker |
| Cleaning | Insert top rack; hand wash case |
| Hot or cold | Insert microwaves |
Why we recommend it
It suits preschoolers who cannot manage latches, and families with a Simple Modern bag already.
Skip it if you pack runny food, as the maker stops at leak resistant.
Pros and cons
Pros
- Careful wording
- Easy button
- Microwave insert
Cons
- Only three compartments
- Not leak-proof
- Hand-wash case
7. Munchkin Lunch Bento Box with Utensils – Fork and Spoon in the Lid
Munchkin’s box starts the youngest, at 18 months and up, per the listing. It has five compartments, a carrying handle, and a stainless fork and spoon that snap into the lid so they do not go missing. It is about 9.2 x 8.9 x 3.2 inches and cleans on the top rack.
BabyGearLab included it and lists it as not leak-proof, somewhat heavy and not insulated. Munchkin does not claim otherwise in this listing. Pack dry food, and treat it as a daycare or picnic box, rather than one to bury in a backpack.
Why we like it
- Maker gives 18 months and up
- Utensils snap into the lid
- Carrying handle
- Top-rack dishwasher safe
Key specifications
| Model | 17949 |
|---|---|
| Compartments | 5 |
| Capacity | Not stated |
| Material | BPA free; steel utensils |
| Maker’s age guidance | 18 months and up, per listing |
| Leak wording | None claimed; not leak-proof per BabyGearLab |
| Cleaning | Top rack |
| Hot or cold | Not insulated |
Why we recommend it
It suits toddlers at daycare or on outings, with a parent packing dry snacks.
Skip it for wet foods, because BabyGearLab found it was not leak-proof.
Pros and cons
Pros
- Utensils stay with the box
- Young stated age
- Has its own handle
Cons
- Not leak-proof
- Bulky
- Not insulated
How to choose a bento lunch box for school
Before you shop, ask what your child actually eats and how long they get to eat it. Those two answers rule out most of the market.
Test the latch first
If your child cannot open it, nothing else on the listing matters. Try it at home before the first school day, with the lunch inside and the hands cold, and leave time to return it. BabyGearLab calls out ease of opening in its note on the Bentgo Kids.
Treat leak claims as a range
“Leak-proof” can mean thick dips stay put, while a spoonful of water does not. In BabyGearLab’s leak check the Bentgo Kids passed, while some liquid escaped from the standard OmieBox when tilted. LunchBots says plainly that its dividers and lids are not watertight, which is the honest kind of listing. If in doubt, put wet foods in a small sealed cup.
Size it for the child, not the shelf
Bentgo Kids holds 2.4 cups, and Bentgo Pop holds 5 cups. Lunch that comes home uneaten may just be too much food, and a hungry child after school may need more room. Makers set their ages by portion as much as by hands.
Know what actually goes in the dishwasher
Read this part closely. Bentgo and Simple Modern say the tray goes on the top rack, but the outer case should be washed by hand. Yumbox says the same of its tray. OmieBox UP says the box goes in. If you run a dishwasher every night, this will matter more than the color.
Plastic or stainless
Steel lasts and does not hold smells, but it is heavier and cannot go in the microwave. Plastic trays are lighter and often microwave safe. Whatever you buy, go by what the maker states about its materials, and do not read more into “BPA free” than those words say.
Plan for the bag and the cold
Most of these do not insulate. If lunch sits in a warm cubby, add a lunch bag and an ice pack, or choose a box with an ice pack built in. For hot food, a separate food thermos gives you more choice than a built-in jar. Rice and beans from last night travel well, and our guide on reheating Mexican leftovers helps at home.
How we picked these seven lunch boxes
We have not used these products ourselves. We read each Amazon listing and confirmed it was in stock with a new lead offer when we wrote this, setting aside anything shown as low stock. We read BabyGearLab’s kids’ lunch box review, updated January 2025. It covers Bentgo Kids, OmieBox, LunchBots and Munchkin, though not the exact versions of all of them, and it does not cover Yumbox, which rests on the maker and listing details. We skipped any listing already on our other guides. We also checked the Consumer Product Safety Commission’s recall database under each brand and found no recalls for these lunch products: Munchkin’s recalls involve toys, pacifiers and warmers.
Kids lunch box questions, answered
What is the best kids lunch box for kindergarten?
Bentgo Kids is the obvious starting point, since Bentgo sizes it for ages 3 to 7. Simple Modern’s bento is also listed for ages 3 and up, and its push button may suit some hands better. Try the latch either way.
Are bento boxes really leak-proof?
Some are better than others, and claims vary. BabyGearLab’s test favored Bentgo Kids over the standard OmieBox. For anything thin, like soup or juice, use a sealed jar or cup.
Can kids’ lunch boxes go in the dishwasher?
Often just the tray. Bentgo, Simple Modern and Yumbox name the removable tray or insert for the top rack, and Bentgo recommends washing the outer shell by hand. Follow the maker, because heat can warp a lid or damage a seal.
Which kids lunch box keeps food hot?
OmieBox UP is the one built for it, with a thermal jar the maker says keeps food warm for up to 4 hours. BabyGearLab found the standard OmieBox’s jar disappointing, so we would still test yours with real food.
How do I keep lunch cold at school?
Use an ice pack in an insulated bag. OmieBox UP has its own removable pack.
Packed and ready
Buy for the age and the latch, then be realistic about leaks. If your child is past the cartoon stage, our bento box guide has the next size up, and our kids plates guide covers meals at home. For nights you do not feel like packing anything, call Julia’s at (346) 546-8283 to order, or see the menu.