We have really found the Best Bottom shells and liners to be great! Love all the buttons to customize the size. We only had one leak so far and it was user error putting it on. I also love that these are made in the USA.
Family Owned business in Illinois - Best Bottom Diapers are USA Made!
The simple cloth diaper solution! Best Bottom All-In-Two (AI2) diaper cover with two snaps inside to snap your insert into. You choose the reusable insert that works for your baby (sold separately). Leg gussets guard against leaks. Just snap in your insert and go! Reuse the cover and snap in a new insert when wet. Rise snaps adjust as baby grows.
The OS Best Bottom diaper shell is designed to fit babies approx 8-35 lbs.
Simplify, simplify, simplify! Many may start researching cloth diapers, get overwhelmed and quit. Best Bottoms are YOUR solution! So easy to use yet comes with lots of options so you can get a customized system for your baby.
1. Adjust front snaps to achieve the size needed.
2. Snap insert into diaper.
3. Put diaper on baby and go!
4. When baby needs a diaper change snap out soiled insert and snap clean one in.
5. Put diaper on baby and go AGAIN. The Best Bottom shell is wipe-able and can be used multiple times before washing but you may want to air dry between uses but it is not necessary.
We recommend getting as many shells as your baby poos in a 2-3 day time period (for newborns count how many explosions they have!!). We have found that poo does stay on the insert most of the time but in some cases it may not (but it will stay in the diaper cover avoiding a big mess!) Three different size inserts in several different materials available. We don't believe in a one size insert. Newborns and toddlers are not the same size so in order for a one size insert to absorb enough for a toddler it will be HUGE on a newborn. You may not need all three sizes of inserts and can skip the middle size - it is all up to you! We recommend approximately 24 inserts per size.
So to make it SIMPLE you will need approx 8-10 shells and 18-24 inserts per size. How easy is that?!
OS Best Bottom diaper shell approx 8-35lbs
The Bigger Best Bottom diaper shell approx 10-45+ lbs.
We added special leg gussets to help keep everything in, adjustable rise with four settings, and overlapping closure. This is a very trim fitting diaper so please be extra careful that none of the insert is
sticking out of the shell. Also, after the diaper is on, pull the leg gussets out around baby's legs. This will guard against leaks and help avoid any red marks.
Insert sizes (sold separately):
Small: birth-14lbs
Medium: 11-22lbs
Large: 16-35lb
Best Bottom Cover: 100% Polyester PUL
Hemp/Cotton Inserts: 55% hemp/45% certified organic cotton
Bamboo Inserts: 100% viscose bamboo
Bamboo Stay Dry Inserts: Top Layer 100% Polyester - Bottom Layers 100% viscose bamboo
Made in the USA!

Overall rating: 5.0 / 5 from 16 reviews.
We have really found the Best Bottom shells and liners to be great! Love all the buttons to customize the size. We only had one leak so far and it was user error putting it on. I also love that these are made in the USA.
Carlei M. 5/5 Verified
Super easy to use!... Super easy to use! I’ve wanted to cloth diaper, but was afraid to try. I finally gave it a shot and the best bottom system is really slick. I love the cute covers!!
Katie R. 5/5 Verified
Happy best bottom user Love using these best bottoms because they are super easy to clean and change out the insert! The patterns are also adorable!
Carolina W. 5/5
One diaper cover I received had a defect in the seam. I reported it and the company replaced it right away. I am very happy overall with all the diaper inserts and covers and had an excellent experience with their customer service.
Kristin S. 5/5 Verified
Loved these for both kids!
Hillary B. 5/5 Verified
Happy with the diapers We’ve really enjoyed this diaper cover! The shade of grade is pretty and goes well with my daughter’s outfits. The snaps are secured very well.
Robbie W. 5/5
Easy, Diverse Use I love the diversity of this cover. The ability to snap in new inserts but use the same cover makes for much less bulky diaper bags and easier changes overall. The fit was a little wonky on my super skinny baby, but now that he’s grown more, the fit is working much better. Would absolutely recommend these diapers to anyone!
Sydney 5/5
Best diaper covers ever These diaper covers work great!! My daughter is a fairly small human (12lb at 5mo) and she fits perfectly in the cover! The snaps are nice and strong and can be adjusted accordingly to her small size. I love having snaps inside the cover that fit perfectly with the insert as well. The best part is how blowout proof these things are. Holy moly! The leg and back gussets keep in all the poo just as a diaper should and the covers clean super well in the wash. No hassle whatsoever. Couldn't be happier.
Dani 5/5
The Best Bottom diaper... The Best Bottom diaper system is the best! I've cloth diapered for over 20 years, and every since I've discovered Best Bottom diaper covers and inserts, I no longer need any other option! This cover works exactly as the other Best Bottom diaper covers - great! And it's cute too :)
Mindy E. 5/5
The Best Bottom diaper... The Best Bottom diaper system is the best! I've cloth diapered for over 20 years, and every since I've discovered Best Bottom diaper covers and inserts, I no longer need any other option! This cover works exactly as the other Best Bottom diaper covers - great! And it's adorable too :)
Mindy E. 5/5
The Best Bottom diaper... The Best Bottom diaper system is the best! I've cloth diapered for over 20 years, and every since I've discovered Best Bottom diaper covers and inserts, I no longer need any other option! This cover works exactly as the other Best Bottom diaper covers - great! And it's adorable too :)
Mindy E. 5/5
Great diapers & inserts! Great diapers! The wipeable insert is convenient and the hemp inserts are so soft on baby’s skin. 10/10 recommend!
Nichol W. 5/5
Great diapers! Great cloth diapers! The wipeable insert is very convenient and practical + the inserts are thick, good quality! 10/10 recommend
Nichol W. 5/5
My favorite covers! I love these covers! They fit more snug on my child than others I’ve used, and the prints are so cute! I love that the inserts snap in for easy diaper changes.
Taylor 5/5
10/10 recommend! When I started tossing around the idea of cloth diapering, I decided Best Bottoms was the way to go. I really liked how easy it was to use the inserts and care for! 10/10 recommend if you’re looking for a easy way to cloth diaper 🙌🏻
Kaylee H. 5/5 Verified
Best covers ever! They fit my little one better than other covers we’ve tried and they come in the cutest prints! The leg gussets keep leaks away, and used with the inserts they’re the perfect system!
Taylor B. 5/5