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Flat Stacks Food Storage Container Set (4 Round)

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Discover the ease of an organized kitchen.

Our set of 4 Round Flat Stacks is perfect for salads, soups, cereals, and other foods on the go. 

Flat Stacks collapse down while not in use to save up to 60% of space and help keep you organized. Flat Stacks also have matching colour-coded lids that can stay attached while stored. This will save you time searching for matching lids and containers.

Flat Stacks are 100% BPA and BPS-free, so it’s safe for you and your family. They’re microwave, dishwasher, and fridge/freezer safe making leftovers and cleanup a breeze. The top valve can be closed to seal contents inside the containers or opened to vent air out as well. This keeps food fresher for longer and is great for use in the microwave.

Flat Stacks Containers Product Description Infographic

Product Details

  • Collapsible for storage to save up to 60% storage space.
  • Matching colour-coded lids that can be stored with the matching containers to save time from looking for them.
  • Microwave, dishwasher, and fridge/freezer safe which means fewer dishes.
  • 100% BPA and BPS free so it’s safe for you and your loved ones.
  • Food-grade silicone makes it highly resistant to damage from varying temperatures (i.e. freezer, microwave).

Shipping and Satisfaction Infographic

Check out the reviews below from people just like you!


Product Dimensions:

Yellow - 350 ml | 12x6.4 cm | collapses to 2.6 cm

Purple  - 540ml | 14x6.4 cm | collapses to 2.6 cm

Green - 800 ml | 16x6.4 cm | collapses to 2.6 cm

Red - 1200 ml | 18x7.4 cm | collapses to 3.4 cm

Product Weight:

114-228 g/.25-.50 lbs


2 year limited against manufacturer's defects.

Care & FAQ's

  • The seal on my lid comes out in the dishwasher.
    The seal in the lid does come out for cleaning purposes. If food was trapped under the seal and it was not removable, there would be a potential for mold to build. We would suggest removing the seal prior to placing the lids into the dishwasher to ensure they are not lost or damaged. When replacing the seal, ensure the seal is inserted on its narrowest side.
  • My lids seem to be warping?
    Always use the top rack of the dishwasher, if you choose not to hand wash this product. This will prevent the lid from becoming too hot and changing shape. Even though Flat Stacks are dishwasher safe, like any item, hand washing provides product life longevity.

Customer Reviews

Based on 12 reviews

I love these so much on how much space it saves in my kitchen and now looking forward to be using them in our rv trailer this summer. I got rid of all my other plastic containers and only use these. The first time I seen these was at a Costco at a promotion that they were having where I brought my first set. That was 5 urs ago. We have brought some more since, including today. We got one set of all the sizes. Some will be staying at home and some will be going to our rv trailer.

Wow, Tara, your review has all just beaming! Thank you for taking time out of your day to share this feedback, we love how much Flat Stacks work for you :)


Love the containers so far! Holds more than you think and food safe makes these perfect for storage! Will be purchasing more!

Thank you so much Joanna for the kind words!

Sherrill O’Neil
Love these containers!

We have bought so many of these containers and also for our kids and families. They are just so great! But now I am looking for the lunch containers that have sections in them. Are they no longer available?

Thank you Sherrill for the great review! Unfortunately, we have discontinued the lunch containers for the foreseeable future, but I will share your feedback with our product development team for future considerations :)

Kathy Obray

I really like them all

Thank you Kathy for leaving us a positive review. We are so happy you like the Flat Stacks, they are a great addition to any kitchen!

Mary Conklen

Love this oroduct

Customer Reviews

Based on 5 reviews Write a review