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  • ECOlunchbox Three-in-One stainless steel bento box
  • The Three-in-One is a fun and easy way to pack your lunch in two layers. It includes an ECOlunchpod snack container, too!
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  • Keep an eye out for our new colorful, but still eco-friendly, packaging!
  • Back to school with ECOlunchbox. Is a healthy, plastic-free, classic stainless steel lunchbox on your back-to-school shopping list?
  • BPA-free, plastic-free, stainless steel & totally dishwasher safe.

ECOlunchbox Three-in-One


Product Description

Our Three-in-One is three containers sold all together as a nesting lunch box set. This nifty bento container makes it easy to pack a variety of foods and keep them all separate - and safe from squishing! Our Three-in-One is perfect packing a healthy entree and two side dishes. 

The Three-in-One is modular. You can pull out the snack container and use it separately, freeing up more space in the upstairs for more food. For more Three in One menu ideas, view photos here.

Our best-selling bento, the Three in One is crafted from 100% high-quality, food-grade stainless steel. Because it does not contain plastic, the lunchbox is free of all estrogen-mimicking chemicals, such as bisphenol-A (BPA), phthalates, and bisphenol-S (BPS).


Product Details

  • Durable design uses 100% food-grade stainless steel.
  • 3 piece nesting bento set. Includes upper and lower food containers plus a snack container.
  • Three different sections keep food from touching and mixing. Also works great for portion control.
  • All together the three containers have 31 oz capacity (3.8 cups). Bottom section has 12 oz capacity (1.5 cups). Top section has 14 oz capacity (1.75 cups)
  • Snack container has 5 oz capacity (.75 cup)
  • Measures 4" wide x 5.5" long x 2.75" high
  • Non-toxic: free of estrogen-mimicking toxins commonly found in plastic, such as BPA (bisphenol-A), BPS (bisphenol-S) and phthalates
  • Kid-tested clips can be adjusted looser or tighter. Learn how here.
  • Container is not leak-proof since no plastic gaskets are used
  • Dishwasher safe. Not for use in microwave.
  • Made in India. 

For more information see "Other Details" below.

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#ECOlunchbox: Real lunches by real people.
Three-in-One lunch by @HowAboutCookie@ahappykitchen@poetrosefood

Product Videos

ECOlunchbox Three-in-One

  • ECOlunchbox Th...

Other Details

31 fl. oz. / 900 ml
Tare Weight:
16 oz. / .45 kg
Stainless Steel 201
Dishwasher Safe
Usually ships within 3-5 days

Product Reviews

Write Review

  1. We love them....

    Posted by Christy on September 26, 15

    I bought 1 Ecolunchbox set 2 years ago which I love, I have since tried 3 other brands which have been ok but I realized that this Ecolunchbox is my all time favorite so I ordered 1 more for my son and 2 for my sisters kids.. We LOVE them! The price is high but you get 3 pieces for that price so that's all I've ever needed.. I wash them everyday after school and use the same 3 containers all week!! Now all my friends want a set.. I love the way the containers are so compact that I can't still fit a thermos and anything else in their lunch boxes. My kids are 8 & 5. When my son was 3 he struggled a little to open 1 of the containers. But we practiced a lot at home.

  2. Greatly recommend

    Posted by Marie - NJ on September 15, 15

    I bought this lunch box for my kids. It is super convenient and the kids love it. It closes tight. It is super easy to clean. Great buy!

  3. Exactly what I was looking for

    Posted by Richelle B on September 1, 15

    I've been looking for a stainless steel lunch kit for my Daughter to take to kindergarten. This one is exactly how it looked in pictures and is easy to use and clean!

  4. Great lunch box!

    Posted by Jackie m. on August 18, 15

    My first grader wanted a metal lunch box. He was very specific and wouldn't settle unless it was exactly what he wanted. We found nothing at the stores DVD checked online, ordered this and he fell in love!

  5. Great product

    Posted by Renee on August 4, 15

    This is perfect for my hiking emergency supplies. Wish it was waterproof but I love that I can cook in it if something goes wrong on one of our outings.

  6. Worth the money

    Posted by Derek on June 24, 15

    Very solid and versatile alternative to plastic. I got it because I was sick of dealing with all the plastic gladware containers. It is much easier to clean and self contained.

  7. No more crushed lunches

    Posted by Unknown on June 11, 15

    Little to no waste every day, easy to use and clean, tough enough to toss around. Definitely one of the best food container purchases I've ever made.

  8. Great for kids

    Posted by daimblond on December 4, 14

    I've been packing lunches for my children for 3 years now. Both my kids (ages 7 and 10) love using ECOlunchbox Three-in-One. It's enough to give provide them lunch and afterschool snacks. Great design and function. They/I actually prefer the ECOlunchbox over other stainless steel brands I have.

  9. Awesome!

    Posted by heather on August 19, 14

    I love this lunchbox! I've been looking for a really cool and Eco-friendly lunch box and I finally found it. Thank you!
    (Heather Orton, 15)

  10. plastic free finally!

    Posted by Jules on July 29, 14

    This is a great bento style lunchbox! I love the clips securing the boxes together, the stainless steel is very sturdy, & I'm very happy with the overall quality. I put my lunch sandwich in the bottom & the breakfast sandwich up top. I use the smaller box for a snack & LOVE the fact that I'm not contributing 2 plastic sandwich bags a day to our landfills!