LENGTH
Measure from the tip of your middle finger to the breaking point in your wrist where it joins the palm.
CIRCUMFERENCE
Measure around the widest part of your hand (approximately 2 cm. above your thumb — be sure NOT to measure around your thumb).
SIZE
Choose the larger of the two sizes you fit into. For instance, if your length is 7.5 and your perimeter is 7.9, you would follow the length sizing and choose a 90.