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Big O.N.E. Cloth Diaper - Arctic- Dark Navy Diaper for Toddlers
Two different size cloth diapers showing large and small, in the color rose. The Big ONE Diaper is nine inches tall and eight inches wide. The regular ONE Diaper is 7.5 inches tall and 6.5 inches wide.
The inside of the big o.n.e. diaper showing the white inside of the diaper with included soaker sets.
Big O.N.E. Cloth Diaper - Arctic- Dark Navy Diaper for Toddlers
Two different size cloth diapers showing large and small, in the color rose. The Big ONE Diaper is nine inches tall and eight inches wide. The regular ONE Diaper is 7.5 inches tall and 6.5 inches wide.
The inside of the big o.n.e. diaper showing the white inside of the diaper with included soaker sets.

Big O.N.E. Cloth Diaper - Arctic

$27.95 $20.96
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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 is unique among cloth diaper all in ones (fits 35-70 pounds) because it comes with everything parents need to cloth diaper a larger toddler or older child. 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
  • Larger fit for toddlers or older kids (fits 35-70 lbs.)
  • Modular Snap In Soaker System allows for customization
  • Easy closure replacement
  • Fairly and conscientiously made in China

    Preparing O.N.E. Diaper

    Remove Hook & Loop strips*. If using during daytime, wash with detergent and dry once prior to first use. If using as a night diaper, O.N.E. must be washed and tumble-dried 3-5 times before use.

    General Washing

    Do not use fabric softener or dryer sheets. If using a Diaper Rash Cream other than Magic Stick (and a few others), we recommend using a Disposable BioLiner to avoid a build up on your diapers which will cause repelling instead of absorbing. If you have questions on the diaper rash cream you are using, please reach out to our Customer Service Team.

    This is an All In One diaper, you must wash the entire diaper when soiled.

    Remove as much solid matter as possible. Place soiled diaper in a dry diaper pail - no soaking necessary.

    We recommend washing every 2 days and using line 1-2 of good cleaning laundry detergent in a warm pre wash, followed by the full recommended amount (or sometimes more, if using a free and clear detergent) in a warm main wash. You can then do an extra rinse at the end, but it is not always necessary.

    Mighty Bubbles is great at deep cleaning every few months, or as needed. If you have ammonia build you may need to do a bleach wash to really remove the lingering bacteria trapped in the diapers. If you choose to do one, this is what we recommend. 

    Take your washed diapers and rewash them in a warm water wash and 1/4 cup bleach for a HE washer or 1/2 cup for a non-HE washer with agitator.  Use an extra rinse or two. You can follow up with Mighty Bubbles to remove any traces or smell leftover. 

    As always, please contact our Customer Service Department with any questions you may have. We are happy to help!

    *For maximum longevity of your hook and loop, we recommend removing prior to washing and drying.

    • Hidden Inner Layer: 100% Polyester Microfiber
    • Outer: 100% Water Resistant Polyester TPU
    • Soaker: 100% Cotton topped with 100% Polyester Microfleece
    • Body Lining: 100% Polyester Microfleece
    • Outer: 100% Water Resistant Polyester TPU (Exclusive of Trim)

    One size cloth diapers, custom fit for larger kiddos.

    Bigger Size + More Absorbency

    Some toddlers and kids with special needs have to use and still want the benefits of reusable diapers. The Big O.N.E diaper is the perfect solution for bigger and older kids. It comes with everything you need to cloth diaper your toddler.

    Fits 35-70 Pounds

    This cloth diaper for toddlers still has some of the same quality and features parents love about our original, best-selling O.N.E. diaper:

    Outlast Closure

    Choose between Hook & Loop and Snap closures and the choice to buy a replacement kit when your Hook & Loop wears out, to save money and increase the life of your cloth diapers.

    Channeled Soaker

    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.

    Modular Soaker System

    Modular snap in no-prep soaker system contains one small and one large Soaker, allowing for customization based on need, from a more lightweight diapering solution to high-absorbency, overnight cloth diapers for heavy wetters.

    O.N.E. Cloth Diaper - FAQ

    Before laundering, dispose of the solids. Remove the Outlast Closure Hook/Loop strips before placing Big O.N.E. in your diaper pail. We recommend removing Soaker Pads before placing them in the diaper pail so that each piece of the diaper is optimally agitated. Choose warm or hot water and enough of your favorite good-cleaning detergent.

    To cloth diaper full-time with the Big O.N.E. Diaper, you will spend between $600-$650. Remember that you’re saving 5x that by not buying disposables. To use the Big O.N.E. Diaper as your child's overnight cloth diaper, you will spend just over $100.

    For full-time cloth diapering, we recommend at least 24 diaper changes per child to best spread wear out among all the diapers in your supply.

    For using the Big O.N.E. as your child's overnight cloth diaper, we recommend having at least 4-6 as nighttime cloth diapers.

    Customer Reviews

    Based on 92 reviews
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    D
    Daisy

    Amazing nappies and brand. My daughter is 7 but has so much room in these. Shipped to UK very quickly

    L
    L.M.
    Perfect for older kids!

    My daughter is autistic and having trouble mastering potty training. She is 5 years old, about 50 ish lb, 3 ‘ 5 “ and 23-24 “ waist. Currently we use 5T/6T pull ups which thankfully still fit but can get expensive. I used cloth diapers before but struggled to find sizing beyond 35-40 lbs that weren’t adult sized and too big. This diaper is the perfect size for bigger but still young kids with special needs. I bought one on sale to test and plan to get more. My daughter still has growing room with this size. I hope this review and measurements help more special needs parents and caregivers!

    J
    JessieW
    Saves So Much On Night Pullups!!

    I'm in love with the B.I.G. ONEs, and can't say enough about how much money I feel I'm saving not buying pullups for nighttime alone!!!! My toddler is very tall, and pullups uncharge for every growth spurt. I felt so frustrated bc we were almost out of pullups if it wasn't for the night. My cousin was talking about her 7 year old still needing pullups overnight and that possibility seemed daunting. That was it for me! I thought a better way had to exist. Hello B.I.G. ONEs!! I tell everyone I see about them. My child is comfortable at night. We call them her night panties. I throw them in with her underwear. Win win!
    The only cons are the bulk and occasional dampness on her pjs. But I'll take that. I'm already doing laundry anyway, and nightshirts are comfy, so who minds the bulk?!

    PRO TIP: Buy these on sale for EVEN more savings against the pullups price. You only need about 3-4 for night time training. Thats equivalent to just a few boxes of pullups. And they adjust in size if your child needs the protection for longer.

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