Thirsties One Size All In One Diaper
Thirsties One Size All In One Diaper - Mountain Bike
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Thirsties One Size All In One Diaper

Product Rating: review

A one size, easy-to-use, one piece diaper from Thirsties!

Our Price:$18.95

Choose Options and Quantity

Color/Print - Closure


Thirsties One Size All In One Diaper - Trim, Stylish, Comfortable!

Cloth Diaper Trial with Thirsties Diapers - 30 Day Money Back Guarantee

From Thirsties comes their new One Size All in One reusable diaper, which truly challenges the slim-fit and convenience of a disposable diaper. This diaper offers absorbency, waterproof protection, and adjustability all rolled up into a stylish, comfortable and extremely effective cloth diaper.

The team at Thirsties thoughtfully designed this all in one diaper. The built-in, three-layer microfiber terry soaker absorbs an amazing seven times its weight in liquid. The soaker is topped with a stay-dry microfleece which keeps your baby feeling dry. An additional layer of terry lies between the microfleece and PUL body of the diaper providing a last line of defense. The soaker is sewn in on one side (at the top of the diaper), which makes adding extra absorbent layers a cinch and tremendously decreases drying time…it’s the fastest drying diaper Thirsties has ever created!

Thirsties One Size All In One Diaper Features

  • More absorbent and dries 3 times faster than the previous Duo All In One.
  • Convenient, trim fitting, and absorbent.
  • Goes on in one simple step - cloth diapering doesn't get easier.
  • One size diaper provides a customizable fit for most babies from birth to potty.
  • 4 total layers of absorbent microfiber terry, a microfleece liner and a reliable waterproof exterior.
  • Available with hook & loop or NEW snap configuration with two rows of snaps.
  • Gentle elastic around legs and waist provide protection against leaks.
  • Stay-dry microfleece liner provides wetness protection.

Available In Your Choice of Hook & Loop or Snap Closure!

Both hook & loop and snap closures are available on Thirsties One Size All in One. While many families prefer hook & loop closures because of the simple, secure fit they provide, snap closures do have a few advantages of their own. They are practically indestructible and are more unyielding than our hook & loop closures, making them more challenging to unfasten for a toddler who prefers to go naked.

Fiber Content:

  • Outer - 100% polyester with waterproof urethane coating
  • Inner liner - 100% polyester microfleece
  • Inner absorbency - 1 layer of microfiber terry
  • Inner soaker - 100% polyester (3 layers of microfiber terry topped with layer of microfleece)

Care and Use

Before use: Wash 1-3 times using a cloth diaper safe detergent.

At every wash cycle: Prewash on warm. Wash on hot. Add another rinse on warm. Hang dry or dry in the dryer on low. Turning the diapers inside out may speed dry times. If the diapers are stiff after line drying, you can throw them in the dryer on low heat with some wool dryer balls to soften them.

Important notes:
Use enough water to soak and cover the diapering items and allow them to agitate.
Avoidthe following:

  • Laundry boosters/additives
  • Sanitize or Whites cycles on HE machines
  • High heat in the dryer
  • Pure Soap
  • Bleach
These practices and/or additives can void the warranty on your Thirsties products.

Proudly manufactured in the USA!


  • Adventure Trail - Hook & Loop

  • Aspen Grove - Hook & Loop

  • Aqua - Hook & Loop

  • Birdie - Hook & Loop

  • Blackbird - Hook & Loop

  • Cactus Garden - Hook & Loop

  • Fallen Leaves - Hook & Loop

  • Fin - Hook & Loop

  • Happy Camper - Hook & Loop

  • Hoot - Hook & Loop

  • Iris - Hook & Loop

  • Meadow - Hook & Loop

  • Midnight Blue - Hook & Loop

  • Moss - Hook & Loop

  • Mountain Bike - Hook & Loop

  • Mountain Range - Hook & Loop

  • Scarlet - Hook & Loop

  • White - Hook & Loop

  • Woodland - Hook & Loop

  • Winter Woods - Hook & Loop

  • Adventure Trail - Snap

  • Alice Brights - Snap

  • Aspen Grove - Snap

  • Aqua - Snap

  • Birdie - Snap

  • Blackbird - Snap

  • Cactus Garden - Snap

  • Fallen Leaves - Snap

  • Fin - Snap

  • Happy Camper - Snap

  • Hoot - Snap

  • Iris - Snap

  • Meadow - Snap

  • Melon Party - Snap

  • Midnight Blue - Snap

  • Moss - Snap

  • Mountain Range - Snap

  • Mountain Bike - Snap

  • Scarlet - Snap

  • White - Snap

  • Woodland - Snap

  • Winter Woods - Snap


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Customer Reviews

3 Stars
Thirsties AIO
Reviewed by: (Verified Buyer)  from Georgia . on 2/18/2017
Thirsties aren't the best . They're trim and I love their prints . However , this diaper can't hold water . If you have a heavy wetter, you should get their NAIO instead of this one . They also run small in my opinion too
3 Stars
Reviewed by: (Verified Buyer)  from VA. on 2/16/2017
Honestly not my favorite diaper. We got melon party and it's so cute, but we get leaks a lot. The fit is pretty good, I think I would be happier with the Thirsties Natural AIO and plan to try that next
5 Stars
Our Favorite Cloth Diaper
Reviewed by: (Verified Buyer)  from South Carolina . on 1/29/2017
We adore Thirsties AIO cloth diapers. They fit my DS really well and I love how trim they are. Plus they are very reasonably priced AND made in the USA!
5 Stars
Super cute!
Reviewed by:  from Long Island, NY. on 1/7/2017
I absolutely love the new mountain prints! Really absorbant! And made in America; how much better can you get?!?
5 Stars
Love these!
Reviewed by: (Verified Buyer)  from Goodyear, AZ. on 1/6/2017
I purchased one of these in the Black Friday sales to see if I like the Thirsty brand. I was very hesitant when ordering because there were only hook & loop left in the print I wanted for my son & I really like snaps. I love this diaper! The hoop & loops were really tough to use at first but have gotten a bit easier without being too easy for my toddler to rip off. I will definitely be purchasing more & would love to try to natural version next.
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