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Right now, Costco members can save $7.50 on Kirkland Signature Supreme diapers, sizes 1 through 6, both in-store and online.
Normally, these diaper packs cost between $29.99 and $35.99, depending on size. From now through April 7th, however, sizes 1 and 2 will go for $22.49 and sizes 3 through 6 will be $28.49.
Non-Costco members can still buy the diapers, but they’ll incur a 5% surcharge.
There is a limit of two per member, however Slickdealer Raphy reports that, “Costco limits are per day.” Did I mention there’s also free shipping?

Shop Diapers from Costco

Each box contains a one month supply (depending on the baby) and comes in two adorable animal designs. But cuteness aside, how good are these diapers?
Slickdealer Cmoney100g says, “Kirkland diapers are made by Huggies, they are great!” For a good comparison, Jnads adds they are, “basically somewhere between Pampers Baby Dry and Swaddlers. Closer to Swaddlers.”
Another Slickdealer reports they’ve “been using these since our little one was 6 months old and haven’t looked back!”
Kirkland Signature Supreme diapers feature a quick draw liner to help keep your baby’s skin dry, as well as a wetness indicator. When it’ time to change your baby’s diaper, the indicator will change color from yellow to blue.
Here’s a handy quantity breakdown with weight recommendations:

  • Size 1: 192 diapers/box (up to 14 lbs.)
  • Size 2: 174 diapers/box (12-18 lbs.)
  • Size 3: 198 diapers/box (16-28 lbs.)
  • Size 4: 180 diapers/box (22-37 lbs.)
  • Size 5: 150 diapers/box (27 lbs. and up)
  • Size 6: 120 diapers/box (35 lbs. and up)

If you’re kicking yourself because you just stocked up on Supreme diapers, don’t worry. Slickdealer Seven87 says you can ask for a price adjustment for online purchases from Costco here.
Looking for more great deals from Costco? Set a Deal Alert with us and stay on top of the latest sales.

Thanks to Slickdealer KSee777 for the original Slickdeals thread.


Amber Hubert

Amber Hubert is a Los Angeles-based freelance journalist, fiction writer, and bargain lover! When she isn't hunting for promo codes or shopping the sale rack, she enjoys storytelling shows and comedy, making coconut curry, cream pie, chicken, and steak. She also loves wine tasting and the company of great friends.