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Coterie vs. Dyper vs. Kirkland




Written by:

Barbara Mighdoll

The Convenient Diaper Showdown

This post is in partnership with Coterie. I only endorse products I believe in.

As a marketing exec and new mom of two under two, saying I’m busy is an understatement. Worrying about running out of diapers, blowouts and diaper rash are not items I care to add to my running to-do list. So I decided to put three convenient diaper brands to the test to see which diaper would make my life easier. It’s time for the convenient diaper showdown.

TLDR: Dyper is a strong contender, but Coterie comes out ahead. And while Kirkland is cheap, you’ll use twice as many diapers compared to Coterie because of its inferior absorbency… meaning more diaper changes, more frequent purchases, and more harm to the environment. 

Coterie is the superior, convenient diaper. Get 10% off your subscription purchase ($81 for a month of diapers): EXTRA10

Criteria 1: Absorbency

To test this feature, I poured water on each diaper brand, then felt how dry it was after 30 seconds. I know, very clever.


Coterie says its diapers wick moisture away from baby’s skin in less than 16 seconds versus the industry average of 30 seconds. Like magic, this diaper felt incredibly dry despite pouring water on it! 5/5


Dyper says its diapers are engineered for dryness, absorbing 2x more than the traditional big-name brands. After pouring water on this diaper, I’d say it’s wetness fell slightly below Coterie’s – not too wet, but not too dry. 4/5


High absorbency means no leakage, no blowouts, no diaper rash, and a full night’s sleep – the most important aspects of any diaper. Aside from a quick “super absorbent” mention on its packaging, Kirkland does little to prove out its absorbency effectiveness. Upon testing, these seem to perform the same as your average diaper. 3/5


Criteria 2: Softness


OMG these are so soft! They feel like actual cloth, not crunchy disposable diaper materials. These certainly take care of keeping your baby’s sensitive skin all nice and cozy.  Seriously you just need to feel them for yourself!  5/5


These diapers are soft, none of that plastic crinkle feeling you’d get from a big-name brand. However, they are missing the fluffy, cloud-like feel that Coterie has. 4/5


To be honest, I expected the Costco brand diaper to feel like straight up plastic. To my surprise these are actually softer than your average drug store brand, but hard to compete against the cashmere-like softness of Coterie. 4/5


Criteria 3: Safety


  • 0% Chlorine bleaching
  • Fragrance free
  • Lotion free
  • Latex free
  • Rubber free
  • Dye free
  • Alcohol free
  • Free of heavy metal
  • Clinically proven hypoallergenic
  • Dermatologist-tested
  • Paraben free
  • Phthalate free
  • Free of harsh chemicals
  • No VOCs
  • No optical brighteners
  • No animal testing



  • Chlorine free
  • Latex free
  • No PVC
  • No TBT
  • No Antioxidants 
  • Fragrance free
  • Lotion free
  • Phthalates free



  • Chlorine free
  • Latex free
  • Fragrance free
  • Lotion free



Criteria 4: Eco-friendly  

Did you know that no diaper is fully compostable, 100% biodegradable or truly eco friendly? Synthetic materials are required for a diaper to function properly.


Coterie diapers are made with wood pulp sourced from sustainably managed forests and has invested a portion of proceeds to accelerate the transition to truly sustainable diapering solutions for all. Coterie also takes part in a Carbon Offsets program, and each time you make a purchase you’ll see in your cart a CO2 Offset added for free. Coterie is thinking about the environment and planning for a sustainable diaper future. 3/5


Dyper offers a disposal service for an extra cost through their program REDYPER. If you pay for it, they dispose of some diaper materials and compost the parts that are biodegradable. Note though that this process releases significant amounts of CO2 into the atmosphere, but they do take part in a Carbon Offset program that is purchased each time a box ships. 4/5


Kirkland has zero mention of sustainability on its product packaging. These are not built to be eco-friendly and they don’t have any obvious conscious efforts to improve the environment. Very disappointing Costco! 0/5 

Eco-friendly WINNER: DYPER

Criteria 5: Cost 


198 diapers for $85 on monthly subscription for size 1 (8-12lb baby) = $0.43 each


224 diapers for $80 on monthly subscription for size 2 (6-16lb baby) = $0.36 each


192 diapers for $39 for size 1 (6-11lb baby) = $0.20 each


Criteria 6: Convenience 


Coterie has three purchasing options: a one-time purchase direct from the Coterie website, a monthly subscription service direct from the website, and the newest option allows parents in a bind to pop into their local Whole Foods to grab diapers. The diaper subscription removes the thinking from ordering diapers monthly – plus you save 10% with the subscription! You’ll automatically receive your diapers just when you need them, and with the convenient text service, you’ll get asked if it’s time to size up before your next order arrives. Shipping takes a few days, which is why I’ve docked a point for convenience. 4/5


Dyper has several convenient purchasing options: do a monthly subscription on the Dyper website, place an order on Amazon with Prime 2 day delivery, or if you find yourself in an emergency, Whole Foods also just started carrying them. 5/5


To buy Kirkland diapers you have two purchasing options: schlep your way and fight the crowds at Costco, or order them as part of your weekly Costco Instacart delivery.  I haven’t been inside a Costco since the pandemic, and you most certainly wouldn’t catch me making an entire trip there just for diapers, however with Instacart you can quickly get same day delivery of your groceries with diapers when you need it. You’ll still need to hit a minimum order to make the delivery fees worth it, which is why I’ve docked a point here as well. 3/5


And the Convenient Diaper Showdown Winner is…

Taking these 6 criteria into account, Coterie is the winner of the Convenient Diaper Showdown. Try them for yourself now.

Get 10% off your subscription purchase of Coterie Diapers ($81 for a month of diapers): EXTRA10


This post may contain affiliate links including the Amazon Associates Program. When you make purchases through links in this post, I may earn a small commission at no extra cost to you.  I only endorse products I believe in. 

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