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Sizing Chart


Check the sizing charts below to make sure you have the correct size! Bella t-shirts run about 1-2 sizes small. American Apparel onesies and childrens' clothing runs one size small, so always order the next size up for infants and children. 

IMPORTANT INSTRUCTIONS FOR SIZING: Take a measuring tape and hold it across the front of your chest, across your bust, and note the length from the middle of one armpit to the middle of the other armpit. All chest sizes below are from armpit to armpit, so the sizes provided below are only half the diameter of your typical chest measurement. 

"Babies are not Pizzas" Bella V-neck Sizes- Women's Tee (across chest)-- THESE WILL SHRINK A LITTLE AFTER WASH due to the tri-blend materials

S  = 16.5 inches

M = 17 inches

L = 18.5 inches

XL = 19 inches

2XL = 19.5 inches**

**I know this is CRAZY SMALL for a 2XL. If the V-neck 2XL is too small for you, then measure yourself and see which crew neck size (scroll down below) will fit you. The crew neck size L is bigger than the 2XL V-neck

"Waterbirth," "Top Five Myths," and "Evidence Based Birth" Bella V-neck Sizes- Women's Tee (across chest)- these typically do not shrink after wash

S  = 16.75 inches

M = 17.5 inches

L = 18.5 inches

XL = 19.5 nches

2XL = 20.5 inches

American Apparel Crew Neck Sizes-- Unisex (chest width)

XS = 16.5 inches wide, 27.4 inches long

S = 18 inches wide, 28.4 inches long

M = 20 inches wide, 29.4 inches long

L = 22 inches wide, 30.4 inches long

XL = 24 inches wide, 31.4 inches long

2XL = 26 inches wide, 32.4 inches long

Maternity T-shirt Sizes (body width)

S = 37 inches wide, 26 inches long

M = 39 inches wide, 27 inches long

L = 42 inches wide, 28 inches long

XL = 47 inches wide, 29 inches long

2XL = 51 inches wide, 30 inches long

3XL = 55 inches wide, 31 inches long

Gildan Long Sleeve T-shirt-- Unisex (across chest)

S = 18 inches

M = 20 inches

L = 22 inches

XL = 24 inches

2XL = 26 inches

3XL = 28 inches

American Apparel Hoodie-- Unisex (across chest)

S = 18.25 inches

M = 20.25 inches

L = 22.25 inches

XL = 24.25 inches

2XL = 26.14 inches

Gildan Plus-Size Tee Sizes (across chest)

3XL = 28 inches

4XL = 30 inches

5XL = 32 inches

American Apparel Onesie sizes (infant weight, chest width, and length of onesie)

3-6 months = 7-15 lbs, 8.25 inch chest, 13 inches onesie length (**This 3-6 month onesie is the same size as a typical newborn or 0-3 months onesie)

6-12 months = 16-22 lbs, 9 inch chest, 14 inch onesie length

12-18 months = 23-27 lbs, 9.75 inch chest, 15 inch onesie length

18-24 months = 28-30 lbs, 10.25 inch chest, 15.75 inch onesie length

American Apparel Toddler and Kids' Tee sizes (around entire circumference of chest-- see instructions below)

**Measure under arms around the fullest part of the chest. Be sure to keep tape level across back and comfortably loose.

2 = 21 inches around entire circumference of chest (Fits a child who is 32-36 inches tall)
4 = 22 inches entire circumference of chest (Fits a child who is 36-40 inches tall)
6 = 23 inches entire circumference of chest (Fits a child who is 40-43 inches tall)
8 = 26 inches entire circumference of chest (Fits a child who is 48-50 inches tall)
10 = 27 inches entire circumference of chest (Fits a child who is 51-54 inches tall)
12 = 28 inches entire circumference of chest (Fits a child who is 55-59 inches tall)