How to measure your wrist for bracelet sizing
Use a soft tape such as a seamstress’s tape to measure your wrist at the location where you are going to wear your ID bracelet. Measure between the wrist bone and your hand or if you prefer to wear your bracelet high then measure just above the wrist bone. If you do not have a soft tape then cut a piece of string or yarn approximately 12 inches long. Wrap the string around your wrist between the wrist bone and your hand. Mark the string where it overlaps the end on your wrist. Transfer the string to a ruler and measure the string from the end to the overlap mark. This is your wrist size.