Smart Bottoms Smart One 3.1 Organic AIO
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Smart Bottoms Smart One 3.1 Organic AIO

Smart Bottoms All-in-One is a one size diaper made with organic cotton and PUL outer. Proudly made in the USA!

Part Number:SBOT-3.1
Your Price: $29.00
In Stock

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Quantity Pricing

  • 6 - 11
  • $28.13
  • 12+
  • $27.55

Smart Bottoms’ Organic One-Size All-in-One Diaper – BEST SELLER!

Smart Bottoms' Organic, One Size, All-in-One diaper fits most babies 10-35 lbs. This uniquely designed diaper offers superior absorbency without additional bulk. The attached insert can be folded to customize where your child needs the most absorbency.

Material Contents: 100% Organic Cotton Inner/ 100% PUL Outer

Care Instructions: Prep diaper before first use by washing 6-8 times. Test absorbency by pouring water on dry diaper, should absorb instantly. If it does not, wash a couple more times and try again. Number of washes required to properly prep depend on type of washer, detergent and hardness of water. Wash and Dry Warm, No Bleach, No Fabric Softener.


  • Lined with 100% Certified Organic Cotton. Offering 10 super absorbent layers.
  • All-in-One design makes diaper changes quick and easy.
  • Patent pending design allows for quick dry-time. Most machines will dry in one cycle on warm.
  • Wide elastic around the legs decreases chance for red marks and prevents leaks.
  • 100% Made in the USA from nearly 100% sourced raw materials.
5 Stars
Very trim
I have tried a lot of diapers, and I really Like these a lot. My baby is over 30 pounds, and they fit him comfortably. They are stretchy and soft. The prints are so cute, and they are super trim, which is a big plus because it helps to keep the fluff butt to a reasonable size :)
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Reviewed by: (Verified Buyer)  from NY. on 11/6/2017
5 Stars
Smartbottoms are life
We love these. We have tried 6 brands all together and 2 of those are aio. And I can say I've sold the othersame and only kept my 2 favorite brands. But this one is my number one brand for everything. I currently cloth 2 boys and they're so trim on my 3 month old and 2 year old. No leaks, super soft elastics and the prints are gorgeous. Not to mention, they hold a ton. I actually bought the smart start kit as well. And I'm in love with how our stash is going. I need more!
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Reviewed by:  from North Carolina. on 4/30/2017
5 Stars
Love SmartBottoms
I absolutely love these. So trim. I never have leaks. Of the OS that I own, he was slower fitting into these than others (small legs) but once they fit they are my favorite go-to diaper. I bought several colors (Monster, Superhero) when they were being discontinued. Anytime I can pick up one $5 off I'm going to.
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Reviewed by:  from Virginia. on 11/20/2016
5 Stars
These are my favorite diapers. They are cute, trim and absorbent.
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Reviewed by:  from TX. on 1/4/2016
5 Stars
One of the best!
I love these diapers! They are absorbent, trim, and the solids are adorable. They seem to have durable elastics and cotton, though I've only been using then for a few months. The weight range is also phenomenal.
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Reviewed by: (Verified Buyer)  from Illinois. on 12/2/2015

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