Selecting The Best
Size For Your Child
The first decision you need to make before building your new Antsy Pants™ stash is what size to purchase.
We've tried to make that easier by creating a cloth diaper with built-in size flexibility, with multiple stretch
elements built right in. These features help Antsy Pants™ fit far longer than one clothing size would, with
the current Antsy Pants™ S/M/L size range fitting children from just a few months of age up to around age
9 with only 3 sizes.
Antsy Pants™ 2015-Present
Original Antsy Pants™; Large sizes, Standard sizes 2009-2014
Size Range: S / M / L
Size Range: 6-12 mos (1T), 2T, 3T/4T, 5
and Large Sizes 7, 9 and 11 (still available)
Size S Fits 15-30lbs.
Measurements after washing:
14" relaxed waist circumference
24" max stretched waist
12.5" relaxed side rise
16" max extended side rise
|6-12mos (formerly known as 1T) size fits children who wear size 6mo
clothing through 18mo clothing. The relaxed waist measurement is 14" and stretches to 21". The
relaxed rise along the side of the diaper is approximately 12".
Purchase size S if your child wears up to size 2T clothing.
|2T size fits children who
wear size 18mo, 2T and 3T clothing. The relaxed waist measurement is 16" and stretches to 24". The
relaxed rise along the side of the diaper is approximately 13".
|Size M Fits
Measurements after washing:
16" relaxed waist circumference
26" max stretched waist
14" relaxed side rise
19" max extended side rise
|3T/4T (formerly 4T) size fits children who wear sizes 3T and 4T
clothing. The relaxed waist measurement is 17" and stretches to 28". The relaxed rise along the
side of the diaper is approximately 14".
Purchase size M if your child wears from 3T to size 5 clothing.
|Size 5 fits children who
wear size 5 clothing. The relaxed waist measurement is 18" and stretches to 30". The relaxed rise
along the side of the diaper is approximately 15".
Size L Fits 45-60lbs.
Measurements after washing:
18" relaxed waist circumference
28" max stretched waist
15.5" relaxed side rise
22" max extended side rise
|Size 7 fits children who
wear sizes 6 and 7 clothing. The relaxed waist measurement is 19" and stretches to 31". The
relaxed rise along the side of the diaper is approximately 16".
Purchase size L if your child wears from size 6 to size 9
|Size 9 fits children who
wear sizes 8 and 9 clothing. The relaxed waist measurement is 19.5" and stretches to 32".
The relaxed rise along the side of the diaper is approximately 17".
|There is no size equivalent in this style for the Large Size 11. If you need XL or
larger in this style contact us at for a custom order.
||Size 11 fits children who
wear sizes 10 and 11 clothing. The relaxed waist measurement is 20" and stretches to 33".
The relaxed rise along the side of the diaper is approximately 18".
The most important things to consider when selecting the right size for your Antsy Pants™ kid:
- Waist Circumference - Your child's waist circumference should be at least the same as
the relaxed waist measurement of the diaper (see details on how to measure at the bottom of the page).
- Hip Circumference - Your child's hip circumference must be smaller than the maximum
waist circumference of the diaper.
- It's Good To Have a Waist - Near the small end of each waist size range, Antsy Pants™
will stay in place much better if your child's hip circumference is larger than her waist.
- Rise Length - Your child's rise measurement should be at least that of the diaper to
be sure there won't be gaps at the leg openings. (Rise length is the skin measurement from front to back waist
passing between the legs right where the leg joins the torso). It's OK for your child's measurement to
be longer than the stated relaxed side rise, especially with the newer styling (left column of the
table below), but you can also think about taking the next size up so long as the relaxed rise measurement is
not too long on that size.
- Primary Use - Will your child wear Antsy Pants™ for day only, mostly for night
or both? If it looks like your child could wear two different sizes and you will often use them for night,
purchase the larger size. When a nighttime insert is added, the rise will measure approximately 1" shorter
than the above measurements.
Measuring Your Child To Determine Size
If you are still unsure about the correct size of Antsy Pants™ to purchase for your child, taking a few of
your child's measurements would be the next step. The three measurements you need are waist circumference, hip
circumference and rise length.
The easiest way to be sure you get these two measurements in the right spot is to tie a ribbon or string
around your child’s waist and use it as a guide for both measurements.
Waist circumference is measured around your child’s torso at the natural waist. This should be lower in the front
(below the tummy) and higher in the back (at the small of the back).
Rise length is measured between the center front and center back points of the above waist circumference,
passing between the legs and flat to the skin at the point where the leg joins the torso. For the most accurate fit
possible, our sizing suggestions reflect this measurement taken without a diaper or other clothing
Need more help? Send us your child's age, height, weight, measurements and clothing size
and we will help determine those close calls. Our email is .
Want to learn more about switching to cloth diapers for your toddler? Already using cloth and want to know
how Antsy Pants™ compare to other cloth diapers? Looking for a night diapering system?