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Armband Size Guide

Upper arm circumference

How to Measure

  1. 1Wrap a flexible tape measure around your upper arm
  2. 2Measure at the fullest part (mid-bicep)
  3. 3Note in inches or centimeters

Size chart

Size Inches cm
Standard Armband 8.5″ – 15.5″ 21.5 – 39 cm
Extra-Long Armband 12.5″ – 18.5″ 31.5 – 47 cm
Both armbands fit most body types.
Additional bra extenders can be purchased at any store if larger sizing is required.

What are the benefits of charting?

By Liza Blake

Women choose to chart their cycle (practice fertility awareness) for many reasons. It can be used to monitor health, avoid or achieve pregnancy or just for learning to understand your body better. It allows you to live in harmony with your body rather than ignoring its natural rhythm. Fertility awareness also gives you more information to take to your providers if you see anything concerning, to put you in the driver’s seat.

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