If you do not know which option is the right fit for you, you can easily measure to find out.
1) Take a cloth measuring tape and measure around your wrist, noting the measurement in inches--this should be your ideal size
2) If you do not have a cloth measuring tape, you can take a piece of string or a strip of paper around your wrist, marking where the string overlaps. Then take the string to a ruler and note the measurement in inches--this should be your ideal size.
