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

8 rating(s) - 8 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.

  • Shop by your values Toxin free, Plastic free, Zero waste, Made to Last, PVC Free, Phthalate Free, BPA Free
By on 20 Jan. 2018 :
Title : Love this lunchbox!
Comment : I bought this for myself to use at work and absolutely love it! It is incredibly versatile in that you can use all levels at once, or just whatever you need at the time. It holds quite a large amount of food and is super easy to clean. It looks brand new even after continual use. Very happy.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 17 Dec. 2017 :
Title : Changable lunchbox
Comment : Love how you can use both levels or just top level with lid and use small container only when needed, makes this a very versatile lunchbox. It’s easy to clean, easy to open and close and is amazing quailty. Can be a bit heavy if walking lots with it in a backpack but that’s all.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 18 Aug. 2017 :
Title : Great for lunches
Comment : I am very impressed with these lunch boxes. They hold more than you think and are easy to clean. They hold up well to the torture of kids at school. Very happy.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 15 March 2017 :
Title : Great lunchbox!
Comment : Absolutely love this lunchbox! I love the design, and the size is great for both kids and adults (depending on your appetite of course). I bought this particular one for myself, and plan on using it for lunches when I go to uni. I do agree with other reviewers, that the latches are a little tight. However, I don't think it's a major issue. I would have loved for the inside container to be leak proof though.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 19 Dec. 2016 :
Title : Great quality
Comment : High quality stainless steel box, means it will last being roughed around a bit. Fits a sandwich on the bottom level easily and snacks up top. Hard to fit fruit it maybe besides a halved banana or mandarin. Not air tight, so can't put wet food in, only if kept upright at all times
(Sustain A Stacker 3-in-1 lunchbox set)
By on 07 Nov. 2016 :
Title : Fantastic but very difficult too open
Comment : Great size, clean and high quality but my 8 yr old has a lot of difficulty opening it, its very stiff and I struggle, so we have to leave one catch side open, this is its only fault really. Cannot fit whole apples in or bigger fruits but we just pop them in the lunchbox bag.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 22 June 2016 :
Title : Good toddler size
Comment : This is a great size lunch box for my toddler. It can fit surprisingly lots in it! It's easy to open and good quality. The dip container is great for dips/sauces or a special treat.
(Sustain A Stacker 3-in-1 lunchbox set)
By on 31 Jan. 2015 :
Title : Nice product
Comment : This is great for picnics, you can fit lots of different things in there. Lovely tub for yoghurt or dips. Good quality stainless steel.
(Sustain A Stacker 3-in-1 lunchbox set)

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