To find your glove size measure around the palm of your hand at the widest part, excluding your thumb. The circumference in number of inches is your approximate unlined glove size. If you have long fingers or nails, you may need to add a half size. For lined Geier gloves, to allow for the lining add at least a half size. (If you are right-handed, measure your right hand. If you are left-handed, measure your left hand.