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
After 15 years of working with Formula 1™ champions, Olympians, and Grand Slam-winning tennis players, Nicholas Harris created hpe in 2013. Applying the science used to accelerate performance, increase recovery, and reduce inflammation, Human Performance Engineering (HPE) products are a cut above the traditional mass sports brands. In just a few short years, hpe has made its name as one of the top technical sports apparel brands. Renowned for both its performance capabilities and fashion, HPE clothing is crafted for true athletes and lovers of style.