A
Measure the length between the tip of your middle finger to the wrist. Use the measured number to compare which size is best suitable for you.
XXS : 165mm (6.5 inches) and below
XS : 165mm (6.5 inches) - 175mm (6.9 inches)
S : 175mm (6.9 inches) - 185mm (7.3 inches)
M : 185mm (7.3 inches) - 195 (7.7 inches)
L : 195mm (7.7 inches) - 210mm (8.3 inches)
XL : 210mm (8.3 inches) and above