Size Guide (US) - Tops

 Size your Bust (in) Body width (in) your Bust (cm) Body width (cm)
XS 33to34in 16.5to17in 84to87cm 42to44cm
S 35-36in 17.5-18in 89-91 44.5-45.5
M 36-38in 18-19in 92-97 46-48.5
L 39-41in 19-20.5in 99-104 49-52
XL 42-45in 21-22.5in 106-114 53-57
XXL 45-49in 23-24.5in 115-125 57.5-62
3XL 50-54in 25-27in 127-137 63-68

 
How to measure ?

Bust: Wrap the measuring tape around the fullest part of your bust. To get the most accurate measurement, get a flexible plastic measuring tape and bring it around your torso to the fullest part of your breasts. Position the tape directly over your nipples and relax your arms at your sides. If possible, get someone to help you take the measurement so you’re able to keep your arms down.

Body width: Length between the stitches below the armpits.