Measure your wrist. Add 1-1.5 cm (women) or 1.5 cm (men) or 1 cm (kids) = size you should order. Add up to 2 cm if you order a wide bracelet.
If you order the wrong size, it is ok to change. Post the bracelet back to us, leave a note with what you want and your address and phone number, and we will make a new one to you.