How We Measure Up

Your unique shape, size, and breast tissue density will influence your bra fitting experience. The measuring process is designed to guide you to a starting band size and cup size. From there, it's important to try on different styles to find the best fit for you.
To Ensure the Most Accurate Measurement:
  • Visit a fitting professional or recruit someone else to measure you.
  • Wear a natural-fitting lingerie bra that maintains your natural shape—with little to no padding or minimizing features.
  • Breathe deep and stay relaxed.
1. Rib Cage Measurement

Measure around your rib cage around the bottom band, just under the breast. The tape measure should feel quite snug. Round the measurement down to the closest inch.

2. Band Size Conversion

Using our measurement guidelines below, find your corresponding band size based on your rib cage measurement.

3. Bust Size Measurement

Measure the bust over the fullest point of the breast. For larger-breasted women, the fullest point may not be at center, and is often lower. As breast tissue can fluctuate as much as 20%, round up to the closest inch.

4. Cup Size Conversion

Subtract your actual rib cage measurement (step 1) from your actual bust measurement (step 3). The difference in inches is your suggested cup size. If the difference is between sizes, round up to the larger size.

Bottom Band

Measurement Guideline

Rib Cage Band Size
25"-27" 30
27"-29" 32
29"-31" 34
31"-33" 36
33"-35" 38
35"-37" 40
37"-39" 42
39"-41" 44
Cup Size

Measurement Guideline

Difference in Cup Size Your Cup Size
3" AA
4" A
5" B
6" C
7" D
8" DD
9" E
10" F
Example
37 - 30 = 7"

Bust size minus rib cage size=cup size

Size = 34D
All Set?

Go experience the difference the right bra can make.

4 Simple Steps to Your Perfect Sports Bra