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

  • Bloom

  • Charlotte

  • Electric

  • Eloise

  • Eternal Sunshine

  • Fantastic Hipster Fox

  • Finch

  • Frozen

  • George

  • Gorilla Blue

  • Grape Soda

  • Heinrich

  • Incredible

  • Juliet

  • Last Unicorn

  • Limelight

  • Major League

  • Mia

  • Monster

  • Rocket

  • Savanna

  • Spicy Tuna

  • Superhero

  • Tie Dye


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Customer Reviews

5 Stars
Great quality diaper
Reviewed by: (Verified Buyer)  from IL. on 1/25/2016
High quality, trim, soft, cute prints/colors. It takes awhile to prep but that shows how absorbent it is. It also dries within my normal dryer cycle time.
4 Stars
Good diaper
Reviewed by:  from Aviano, italy. on 1/22/2016
This diaper is well made and super soft. It fits my four month old so. So well. I do have problems with moisture wicking around the inner thighs. I have to be sure to roll the elastic in. I have to change him every two hours. Al, around good diaper.
5 Stars
Fantastic AIO!
Reviewed by: (Verified Buyer)  from Wisconsin. on 12/17/2015
I was completely in love with my simplex as my go-to AIO before trying this diaper, but I have to say I love SB 3.1 just as much! It does take a good 6-10 washes before it reaches full absorbancy (as mentioned by other reviewers), but after that is is very trim and holds a lot. The organic cotton is so soft! It runs larger than BB Simplex and works great on my little guy's chunky thighs, so I think we will still be able to use this after he outgrows other diapers. Highly recommended!
4 Stars
Reviewed by:  from India. on 11/13/2015
i love the prints of smart bottoms. only problem i have is, the elastic at the back leaves very deep marks on the skin. else its a very good diaper.
4 Stars
Good fit
Reviewed by:  from Portland,or. on 10/26/2015
I love the fit and how absorbent these are. They take forever to prep though! It takes me 10-12 washes before we don't get leaks.
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