With a bra on, wrap a tape measure snugly, but not too tightly, around your rib cage, just below your bust line. This is your band size (US/UK sizing uses inches).
Then, wrap the tape measure around the fullest part of your bust. If the difference is:
1" / 2.5cm your cup size is A
2" / 5cm your cup size is B
3" / 7.5cm your cup size is C
4" / 10cm your cup size is D
About the Designer
Hong Kong-born Samantha Chang found herself drawn to the New York fashion scene as a little girl when her aunt in the United States sent the young artist an issue of Vogue. After following her calling to the Rhode Island School of Design and launching a ready-to-wear collection at Barneys in 1995, Chang found a niche in luxury intimates and launched Samantha Chang Lingerie in 1999. With silky smooth silhouettes and skillfully applied high-end finishing, this luxe line is a foundations favorite.