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

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.

45 Day Money Back Guarantee

Did you know? The manufacturers of Smart Bottoms diapers offer a 45 Day Money Back Guarantee on the Smart One All In One Diaper. If you are unhappy with this diaper for any reason, you are able to return it for a refund within 45 days of the date of purchase. Please contact us if you have any questions.

Proudly made in the USA.


  • Allister

  • American Tweetheart

  • Aviator

  • Charlotte

  • Electric

  • Dublin

  • Eloise

  • Enchanted

  • Eternal Sunshine

  • Fantastic Hipster Fox

  • Finch

  • Frozen

  • George

  • Grape Soda

  • Heinrich

  • Incredible

  • Juliet

  • Lemon Ice

  • Limelight

  • Major League

  • Mia

  • Monster

  • Orchid

  • Rescue

  • Rocket

  • Savanna

  • Spicy Tuna

  • Storm Cloud

  • 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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Smart Bottoms Too Smart Inserts 3 Pack
Smart Bottoms Too Smart Inserts 3 Pack
Smart Bottoms Too Smart Inserts are constructed of 100% organic cotton inserts
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Customer Reviews

5 Stars
Great pattern!
Reviewed by:  from Atoka. on 5/19/2016
I absolutely adore the (super hero) Incredible print. This is my first experience with a Smart Bottoms Diaper and so far I am impressed. It does have a similar stitched side design as my former diapers, but the one long flap. I think that this will last as long if not longer than my previous diapers. Honestly the only thing I'm not a fan of is the price.
5 Stars
Reviewed by:  from Dayton, Ohio. on 5/15/2016
Smart bottoms are my new favorite! I bought rescue because my little guy loves "wee woos". I ended up buying a few more smart bottoms because I love them. Prepping takes forever but I just washed/dried them 4 times then used a booster until they were fully prepped. They are so trim. Even with a booster he can wear jeans!
4 Stars
Eloise AIO Smart Bottoms 3.1
Reviewed by: (Verified Buyer)  from Okinawa Japan. on 4/26/2016
I love how trim this diaper is! And I love that it is Organic Cotton. Very easy to put on and absorbs so much. The only down side is the prep time but its totally work it.
5 Stars
Reviewed by:  from Truxton, NY. on 4/11/2016
Absolutely love these diapers! Nice trim fit, excellent absorbancy, very easy to use. They take about 8 washed to reach max absorbancy, but so worth it. I wish my whole stash could be these!
5 Stars
Great AIO
Reviewed by: (Verified Buyer)  from Tulsa, OK. on 3/31/2016
We generally stick with the AIO diapers for ease of use, especially at day care. Blueberry Simplex make up most of our stash, but I bought my first SB mainly due to a cute print I had to have. I like the way the diaper fits on LO's bum (very trim fit) and the cute prints they have available. The materials are soft and absorbent. I prefer the pocket on the blueberry to add absorbency if needed but this diaper is definitely a great runner-up
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