Sustain A Stacker 3-in-1 lunchbox set

The Sustain A Stacker 3-in-1 is a clever and compact 3 compartment lunchbox set made from 202 food grade stainless steel.  Reusable, hygienic, durable, recyclable and will never leach harmful toxins.

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Customer ratings and reviews

12 rating(s) - 12 review(s)
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Tired of using leaching plastics? This three in one lunch box set is an alternative that is beneficial to your health and the environment.

The Sustain A Stacker provides a roomy and versatile combination of space for you to easily pack a safe waste-free lunch. This clever and compact lunchbox includes 2 large rectangle compartments that nest & clip together plus 1 small container to fit inside the top layer or be used separately. 

Stacking ideas for your lunchbox:

Layer 1 - large sandwich or wrap, rice dish, pasta, salads
Layer 2 - fruit, sushi, dried snacks, nuts, slices and baked goodies
Small container - nuts, dried fruit, cherry tomatoes, carrot, celery or thick dips like hummus

Please note that the lunchboxes are NOT leak-proof, so are not suitable for liquids.

you are making a difference:

  • Manufactured with 100% 202 food grade stainless steel, BPA-free, vinyl-free, PVC-free and lead-free.
  • Reusable and recyclable.


  • 2 x roomy rectangular layers which easily clip open and close.
  • Top layer can be used separately when not clipped to the bottom layer.
  • 1 x smaller container with lid for nesting into the top layer or use separately.
  • Top rack dishwasher safe.
  • 202 Food Grade Stainless Steel


Top layer: 13cm x 18.5cm x 4cm (3.5 cups)
Bottom layer: 13cm x 18.5cm x 4cm (3.5 cups)
Nested container: 12.5cm x 6.5cm x 4cm (1 cup)

Made responsibly in India

Browse our other safe lunch boxes & wraps.

By on 14 June 2019 (Sustain A Stacker 3-in-1 lunchbox set) :

Never look back

Highly recommend. Great size and perfect for the environment.

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By on 18 March 2019 (Sustain A Stacker 3-in-1 lunchbox set) :

Everyday Event!

Loving this Stacker...encourages me to bring lunch to work everyday! Extremely secure when it shuts, no spillage at all.

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By on 10 Jan. 2019 (Sustain A Stacker 3-in-1 lunchbox set) :

What a great way to reduce your plastic footprint

I have been using my 3 in 1 metal luch box for about a month now and I really enjoy it. I love bringing it out with me because then other people might think about about it for at least a millisecond. The only thing I have to say is that the small containers lid has slipped off before and almonds went all through my purse but it wasn't too much of a hassle to clean up. Just make sure you don't overfill the small container and you should be fine.

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