Smart Bottoms Smart One 3.1 All-in-One Diaper
Smart Bottoms Smart One Organic All-in-One
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Smart Bottoms Smart One 3.1 All-in-One Diaper

Product Rating: review

The Smart One 3.1 is a super trim, one-size, all-in-one organic cotton diaper designed for babies 8-35lbs.

Our Price:$29.00
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Smart One 3.1 All-In-One - Made with 100% Certified Organic Cotton

Try Cloth diapers - Test Drive Cloth Diapers and Smart Bottoms Diapers! - 30 Day Money Back Guarantee

Have you been looking high and low for the perfect cloth diaper? Well, search no more! The Smart Bottoms Smart One 3.0 All-In-One has it all:

  • 100% Certified Organic Cotton - Your child's skin will stay safe and free of harmful chemicals.
  • Super Absorbent - Attached insert offers 10 layers of protection.
  • 4 Rise Settings - More adjustability means a better fit! Designed to fit babies 8-35 lbs.
  • Trim - Will fit under most clothes--even jeans!
  • Quick Drying - Innovative design means this diaper will dry in one cycle on warm in most machines.
  • Made in the USA - Smart Bottoms is commited to manufacturing in the United States and promotes fair labor practices.

Use and Care

Prep: The 100% certified organic cotton in Smart Bottoms diapers has been minimally processed, which means there are still some natural oils in the fabric. It is recommended you wash your diapers 4-5 times before use to help remove some of the natural oils. Diapers will reach their maximum absorbency around 8-9 washes.

Directions: Adjust the rise snaps and place the diaper under your baby. Fold the attached insert to fit your baby's needs, then pull the diaper up through the legs and fasten the waist and hip snaps. Remove diaper when wet or soiled and store dirty diapers in a dry pail. Do NOT soak.

Wash Instructions: Shake solids into the toilet before placing diaper in the wash. Rinse with cold water. Wash on hot. Do NOT use the sanitize cycle. Run an extra rinse. Dry on warm or line dry. Do not use fabric softener or diaper creams.

Proudly made in the USA.


As if all the fine features of the Smart One AIO aren't enough, we also offer a 30 day money back guarantee! Buy Smart Bottoms diapers, try them on baby, use them, wash them, and use them again. If for any reason, you aren't thrilled with it, return them for a full refund (minus applicable shipping charges). It is that simple!


  • American Tweetheart

  • Charlotte

  • Aviator

  • Bloom

  • Electric

  • Eloise

  • Eternal Sunshine

  • Fantastic Hipster Fox

  • Finch

  • Frozen

  • George

  • Gorilla Blue

  • Heinrich

  • Juliet

  • Last Unicorn

  • Limelight

  • Major League

  • Mia

  • Monster

  • Rocket

  • Savanna

  • Spicy Tuna

  • Superhero

  • Tie Dye


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NEW DESIGN! bumGenius Elemental is made with organic cotton inside. One-size, one-piece, a more natural option without compromising performance.
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Smart Bottoms Born Smart Newborn Organic AIO
Smart Bottoms Born Smart Newborn Organic AIO
The Born Smart Organic Cotton All In One Diaper is designed to fit most newborns from 6 to 16 pounds.
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Customer Reviews

5 Stars
Reviewed by:  from Missouri. on 9/27/2015
It takes a lot of washes to prep the diaper but once its done it is bulletproof. No leaks and super trim.
5 Stars
Fits great and so absorbent!
Reviewed by: (Verified Buyer)  from Michigan. on 9/14/2015
These are the first diapers I reach for in our stash. The fit is great around my daughters chunky thighs and hips, no red marks! The wide, non-encased elastic is unique and I think is the key to no red marks. They hold a LOT of liquid also. (She is currently EBF also and we've never had an EBF poo leak w/these.) I don't mind all the prepping, I love the 100% organic cotton against my baby so it's worth the time to wash those natural oils out. USA made too!
5 Stars
Reviewed by: (Verified Buyer)  from Maine. on 9/14/2015
Love these diapers! They are trim and absorbent. I'm thrilled that they already fit my 9.5 lb 6 week old!
1 Stars
Didn't work for us
Reviewed by:  from IL. on 8/20/2015
I know a lot of people love this diaper, but it just didn't work for us... It leaked every time we used it... I did 5 wash/dry cycles before I used it- maybe I needed to prep it more to remove any existing natural oils, because the diaper would have hardly absorbed anything after a leak, but after 8 washes (5 to prep, and 3 after using it each time) I wasn't interested in finding out if it would improve- I was more focused on cleaning up bf poop out of my linen sofa... Sadly this one just wasn't for us.
4 Stars
Love the prints
Reviewed by:  from Greenwood, CA. on 7/15/2015
I like the prints this brand offers. The diaper is nice and I like that the insert is attached and can be folded to where you need more absorbancy.
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