Best Bottom Heavy Wetter AIO Diaper Review

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The introduction of Best Bottom Diapers’ Heavy Wetter All-in-One is big news this spring for fans of what has been limited so far to a simple All-in-Two system. The new Heavy Wetter AIO looks a lot like a regular Best Bottom diaper on the outside but is distinctly different when opened up.

Nicki’s Diapers sent a complimentary All-in-One for Katie and me to review with our children, ages 5 months, 19 months and 2. With a name like “Heavy Wetter All-in-One,” we were expecting a lot in terms of absorbency. What we didn’t foresee was the trim profile of this highly absorbent diaper!

The Best Bottom Heavy Wetter AIO has a waterproof outer and is lined with two layers of bamboo viscose. There’s a detachable 6-layer bamboo insert with a fleece topper. That gives you 8 absorbent layers plus a stay dry effect. The insert measures 4.25 x 13.5 inches.

Size range is 10 to 40 pounds and you can adjust the rise 4 different ways.

The snaps inside of the shell serve different functions. The two which are side-by-side at the very back secure the insert to the shell. You can fasten the other end of the to the front snap, if you like. And then there’s a “hidden snap” sewn onto the white bamboo inner, which you can use with existing Best Bottom inserts.

The Best Bottom Heavy Wetter AIO Diaper has a lot of other attractive features:

• Doublet gussets at the legs
• Waterproof PUL strips at front and back of diaper to guard against leaks
• Waterproof PUL at the leg openings to guard against leaks
• Made in the USA
• Available in all currently sold Best Bottom prints/colors (11 right now)

Here is the new AIO next to an original Best Bottom diaper, to give you an idea of the size difference. The AIO is slightly bigger overall and has longer wings.

Fit: The Heavy Wetter size range is 10 to 40 pounds. As mentioned above, it’s a bit larger than the original shells; in size it’s closer to the new Bigger Best Bottom shells. Notwithstanding its larger size and great absorbency, however, it gets high marks on trimness from both Katie and me. We both like the longer wings, too! There’s room to grow for both of our toddlers, but it does get small enough for 5-month-old Mary Kate, too.

Mary Kate is 5 months and almost 14 pounds. You can easily see from the way it fits on her now that it should easily work on a younger/smaller baby because of the crossover snaps and the fact that the rise is not snapped up to its very smallest setting.

Roderick is 19 months old.

Ingrid is 2.5 years old. She can wear it either completely unsnapped, or snapped up just once. I prefer the latter, because it looks trimmer and there’s no extra fabric sagging down, but it does make the diaper sit much lower on her.

Performance: We were both really happy with the absorbency of this diaper. Both of our toddlers wore it through a nap, and Katie tested it successfully overnight on 19-month-old Roderick with 1 extra insert (she used the hidden snap inside to attach the 2nd insert). Baby Mary Kate gets 5+ hours out of this diaper as is (no extra inserts). And since this is a diaper your baby will likely be wearing for longer periods of time, the “stay dry” fleece topper on the insert is a great feature.

Care: Because of its design, this AIO can be washed and dried with everything attached (if you like). The insert stayed fastened in the wash every time. I really like this feature because it saves me from having to hunt for inserts and match them up with their respective diapers on laundry day. Another plus? Let’s say the insert needs a deep cleaning or stripping. Because it can be detached and cleaned separately, that saves unnecessary wash wear on the shell. Dry time for both Kate and me was average/fair after washing in an HE machine.

Prior to first use, wash your Best Bottom Heavy Wetter AIO with detergent at least 3 times.

There was only one drawbacks that Katie and I noted for this diaper. The $29 price tag might be hard for some to absorb, especially if they needed to buy a few. However, if you need just 1 or 2 reliable diapers for a heavy wetter (day or night), then this price is comparable to other super-absorbent AIO’s and fitteds on the market. Additionally, if you think about the cost of one original Best Bottoms shell ($18.95), plus a pair of inserts, you may actually save a few dollars with the Heavy Wetter AIO. Plus, your baby will get to wear it longer since the size range is extended. Whatever you decide, it’s nice to have several options now with the Best Bottom system (AIO, AI2 or just covers).

Where to Buy: You can find the new Best Bottom Heavy Wetter AIO with free shipping over $10 at Nicki’s.

I’d love to know your thoughts on the new Best Bottom AIO diaper! If you have questions, please post those, too.