For maximum comfort and motion control during exercise, a proper fit is very important. To ensure you choose the correct size, take time to measure yourself before you buy a sports bra. Natural changes in women's bodies, including weight gain or loss, childbirth, etc, can affect a bra size from month to month or year to year. Choosing a bra size based on the last bra you purchased isn't advised.

• Use a tape measure (or measure a piece of string against a ruler or yardstick).
• Stand in front of a mirror while measuring.
• Stand straight and make sure the tape measure is straight across your back and not twisted.
• Take your measurements while wearing a regular bra with either no padding or minimal padding.
• To get an accurate measurement, the tape measure should be snug, but not pinching or tight.
• Follow the steps below to calculate your bra size.

Step One: Finding Your Chest Size

• This is the number measurement in your bra size.
• Measure around your chest, under the arms and just above the breasts.
• If your chest measurement is an odd number, round it up to the next even number.

StepTwo: Finding Your Cup Size

• This is the letter measurement in your bra size.
• Measure around the fullest part of your bust. If this measurement is between numbers, it should be rounded to the nearest whole number.
• Subtract your chest measurement (the number from Step One) from your bust measurement. The difference between these two numbers will determine your cup size. Use the chart below to determine your cup size.