Measurement Unit: US (inch) | World (cm) | Both

Old Navy Maternity Underwear Size Chart

LabelSizeHip
XS1 - 2
37 - 38 inch
94 - 97 cm
S4 - 6
39 - 40 inch
99 - 102 cm
M8 - 10
41 - 423/4 inch
104 - 109 cm
L12 - 14
441/2 - 461/4 inch
113 - 117 cm
XL16 - 18
481/4 - 501/4 inch
123 - 128 cm
XXL20
521/4 inch
133 cm

 

Measuring Tips

Here are some tips to help you order the correct size. If you don't have a measuring tape, use a piece of string and hold it alongside a ruler.

Hip

Measure around the natural waist at back & the fullest part of the belly.

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