Regular price $45.00 USD
Regular price $45.00 USD Sale price $45.00 USD
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Discover the ease of an organized kitchen.

The signature set of Flat Stacks includes 4 different sizes of rectangles to suit many meal and snack needs. It is perfect for full meals on the go and even smaller snacks.

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 color-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.

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Product Details

  • Collapsible for storage to save up to 60% storage space.
  • Matching color-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).

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Check out the reviews below from people just like you!


Product Dimensions:

Yellow - 11.83 oz | 4.64x3.26x2.51 in | collapses to 1.02 in

Purple - 18.25 oz | 5.94x3.66x2.51 in | collapses to 1.02 in

Orange - 27.05 oz | 6.77x4.21x2.67 in | collapses to 1.18 in

Blue - 40.57 oz | 7.95x4.21x2.91 in | collapses to 1.33 in

Product Weight:

.23-.55 lbs 


2 year limited against manufacturer's defects.

  • 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 20 reviews
Linda Delaney

I absolutely love my Flat stacks the space you save is amazing

Ignacio Sanabria María Dolores Menchaca Segundo
A++ customer service

I had a lid break on one of my yellow rectangular boxes. I sent in an email asking to buy a new lid. They asked for photos of the product and 10 days later a new lid arrives no charge. The customer service of Oceansales is better than Nordstrom and I give Oceansales products 5 stars too.

Aileen Bernardo

Flat Stacks Food Storage Container Set (4 Rectangle)

Dany Provencher
Flat stacks

J'adore ces plats qui sont compacts lorsque je voyage en VAN car ils ne prennent pas de place et ils sont polyvalents.

Je vous les recommande.


Paul Thornton
Love these things!

I've had a set of these containers for several years - really like them. However, after all the abuse (probably microwave and dishwasher...) the lids started to warp. Even the trick of clamping the small end first, then the sides didn't work. Reached out to Flat Stacks - Charlene. Very happy to learn that they can send me a replacement set of lids - it's breathed new life into the product and will allow me to (hopefully) continue to use them for several more years to come.......