bumGenius 4.0 One Size Pocket Diaper
bumGenius! 4.0 One Size Pocket Diaper - Sassy
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bumGenius 4.0 One Size Pocket Diaper

Product Rating: review

The bumGenius 4.0 One Size Pocket Diapers come loaded with several new features, including SNAPS and REPLACEABLE ELASTIC. Adjust to fit babies from 7 to 35+ lbs.!

Our Price:$17.95

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bumGenius 4.0 One Size Cloth Diapers - reusable, adjustable, sensible pocket diapers!

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

Jennifer Labit, the mastermind behind the bumGenius 4.0 One Size Cloth Diaper has mastered the art of listening to customers' requests.

The trim, one-size pocket diaper continues to be a favorite of cloth diapering families everywhere! With an outer fabric of soft, waterproof material, the bumGenius 4.0 One Size Cloth Diapers are now re-designed to accommodate even larger babies; a diaper that truly fits babies from birth through the potty training years.

An inner layer of non-pill, sueded, low pile fabric wicks moisture away from baby's skin to the absorbent microfiber inserts within. Keeping baby's skin dry helps parents avoid diaper rash or other irritations caused by prolonged exposure to moisture.

Inserts are tucked away to keep baby dry.

The microfiber inserts are tucked into the pocket and secured under a patent-pending flap - no more wet waistbands from inserts that slip up and out of the waist in back! A waterproof insert stopper prevents leaks at the tummy as well.

Stretchy casings rolled-out at the thigh and waist are a gentle way to contain messes without leaving red marks at the thighs. NEW REPLACEABLE ELASTIC is easily located when the pocket diaper is turned inside out. You can expect to use the bumGenius! 4.0 One Size Pocket Diapers for multiple babies; easily replacing the elastic when it loses its stretch.

bumGenius! 4.0 One Size Pocket Diaper Sizes

Sleek and trim stretch-to-fit tabs.

The stretch-to-fit tabs render a more trim and customized fit; these non-wicking tabs stretch around baby's waist for a snug and comfortable fit. If you select "hook and loop" closures, expect an improved, grippier texture so tabs stay where they are placed.

To use: simply lay your baby atop the bumGenius 4.0 One Size pocket diaper and wrap the tabbed wings around baby's sides, securing them to the front panel.

bumGenius 4.0 are bundled with TWO Microfiber Inserts!

Pocket diapers grew quickly in popularity as the most absorbent cloth diapering system available on the market. Knowing the inserts make or break the level of absorbency, bumGenius! 4.0 One Size Cloth Diapers come with TWO of their thirsty Microfiber Inserts - one (1) newborn insert (also used as an overnight booster when your baby moves beyond the newborn size) and one (1) regular sized insert.

The redesign includes the same built-in, wider opening at the back waist; this can accommodate a man's hand to easily stuff or remove inserts from the pocket.

No worries about the wider slot opening at the waist causing leaks! As stated before, the bumGenius 4.0 One-Size Cloth Diapers patent-pending flap over the opening, keeps wetness completely way from your baby's skin.

bumGenius! 4.0 Cloth Diapering Made Easier!

Trim, Waterproof Insert Stopper

Because pocket diapers are stuffed for absorbency, many times the insert will shift to the front or the back, depending on the posture or sleeping style of the baby. When an insert pushes all the way up to the waistline, bunching at the front, moisture can wick into baby's clothing when the cloth diaper rolls outward. The manufacturer of the bumGenius! 4.0 One Size Cloth Diaper remedied this with an "insert stopper".

The waterproof "insert stopper" at the front waist disallows the microfiber inserts from pushing too far forward in the front. In addition, this feature helps the front pocket diaper area stay trim and flat, making it easier to fold down for newborns or smaller babies.

bumGenius! 4.0 One Size Pocket Diaper Features Diagram


As if all the fine features of the bumGenius! 4.0 aren't enough, we also offer a 30 day money back guarantee! Buy bumGenius! 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!

PLEASE NOTE: The bumGenius 4.0 One-Size Cloth Diaper is a single-use cloth diaper. Once soiled, it needs to be washed before being used again. Washing and drying bumGenius One Size Cloth Diapers is as simple as using them.


  • Albert

  • Armadillo

  • Countess

  • Clementine

  • Dazzle

  • Grasshopper

  • Hummingbird

  • Jolly

  • Mirror

  • Moonbeam

  • Noodle

  • Sassy

  • Stellar

  • Twilight

  • White


bumGenius Elemental One Size All In One Diaper
bumGenius Elemental One Size All In One Diaper
NEW DESIGN! bumGenius Elemental is made with organic cotton inside. One-size, one-piece, a more natural option without compromising performance.
Add bumGenius Elemental One Size All In One Diaper to Cart
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bumGenius Diaper Insert
bumGenius Diaper Insert
bumGenius One-Size Microfiber Inserts are sewn from a thick microfiber terry and a perfect fit for your one size pocket diapers!
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Learn more about bumGenius Diaper Insert
bumGenius Bottom Cleaner
bumGenius Bottom Cleaner
Why use disposable baby wipes when you can wipe away baby's messes with gentle, non-irritating bumGenius! Bottom Cleaner spray made from all natural and organic ingredients.
Add bumGenius Bottom Cleaner to Cart
Learn more about bumGenius Bottom Cleaner

Customer Reviews

5 Stars
Really Meets Their Reputation
Reviewed by: (Verified Buyer)  from Virginia Beach. on 2/16/2015
I'm very new to cloth like one week new. I've used this diaper twice through the 30 day trial program. I have not had any leaks. The diaper stays dry as it is made to do. It also fits snug on my baby who is only 8-9lb with skinny legs. It is not too bulk like the all in ones. I'm keeping this one.
1 Stars
Reviewed by:  from Beach. on 2/15/2015
Leaked everywhere. Leaked on a chair that I had to get the carpet cleaner out to clean.
5 Stars
A must have for the stash
Reviewed by: (Verified Buyer)  from Newport News, VA. on 1/19/2015
These are our go-to diaper. Dependable, leak-free and hold up well. I would recommend the snaps over hook and loop though. The hook and loop starts to curl and lose its grab, and my 7 month old figured out how to take them off.
5 Stars
Great diaper!
Reviewed by:  from Illinois. on 12/27/2014
Love this diaper! It is soft and easy to use!
5 Stars
Love 4.0s!
Reviewed by:  from Miles City, MT. on 12/27/2014
BG 4.0s are our go-to diapers, and they do not disappoint! Customizable inserts to fit your little one up through PLing. The color Sassy is so fun, too!
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