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Big O.N.E. Cloth Diaper - Petal

Estimated Launch Date: End of July
Our best-selling diaper, O.N.E, just got BIGGER and BETTER!  Introducing Big O.N.E., a diaper designed to meet the absorbency and size needs of larger kiddos.

The Big O.N.E diaper unique among cloth diaper all in ones (fits 35-70 pounds) because it comes with everything parents need to cloth diaper a baby: enough absorbency to forget boosters and doublers (even overnight), two built-in closure options, and a heavy-duty construction that is built to last.

The Big O.N.E. features a unique Outlast closure system that gives you the ability to choose between Hook & Loop and Snap closures, and the ability to buy a replacement kit when your Hook & Loop wears out. Big O.N.E's absorbency comes from a hidden body layer PLUS our one-of-a-kind cotton, channeled soaker design that is trim yet absorbent. All with the same amazing quality you've come to know and love in GroVia products. 

No need to choose between Hook & Loop or Snap closures

With the Big O.N.E., you can have both! The removable Hook & Loop closure is perfect for those who love a “no-hassle” fit but want to transition to a snap closure later on. 

  • Built-in extra absorbency means the perfect nighttime solution
  • Lasts from birth to potty learning (fits 35-70 lbs).
  • No prepping - can starting using right away
  • Modular Snap In Soaker System allows for customization
  • Easy closure replacement
  • Fairly and conscientiously made in China


Customer Reviews

Based on 3 reviews
Super absorbent!

Got this for my 7 year old who has a hard time waking at night. It’s fantastic for the nights she doesn’t wake up. Super absorbent!!! So glad I’m not wasting $ on pull-ups anymore! So glad to have a bigger size!!!

Perfect for Bedtime

I got these after our nighttime trainers started to become too tight. They are perfect on the smallest setting for my 3yr old, 35lb daughter. There is plenty of absorbency, she has yet to completely soak the entire diaper.


My daughter is 11 years old and she weighs 51 pounds and this diaper is amazing. She has kidney disease so she gets a lot of fluids and this thing is holding up after only one wash. I love it and need more

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