Sizing Chart

MamaSan
Size
Pre-Pregnancy
US Size
Pre-Pregnancy
UK Size
Chest
Waist
Hips
S
4 - 6
8 -10
32" - 33"
26" - 28"
33" - 35"
M
8 - 10
12 - 14
34" - 36"
29" - 31"
36" - 38"
L
12 - 14
14 - 16
37" - 39"
32" - 34"
39" - 41"
XL
16 - 18
18 - 20
40" - 44"
35" - 39"
42" - 45"

We recommend that you buy your PRE-PREGNANT size. If you are in doubt, buy one size up.