Men's Vs Women's Gloves
Glove sizing is a mess. In one brand I wear a XXL and in another I can't fit in a XXXL. The Women's gloves are different from the Men's by having the fingers shorter. The Passenger Glove & the Women's Classic Rider Glove are Sized for Women. So given all that, don't be surprised if your gloves are the wrong size.

Measuring Tips
Measure your hand with a tape measure around the hand, loosely crossing the center of the palm and crossing on top of the knuckles of your hand (indicated by the red line in the illustration on your right).

Measure your dominant hand - the right if you are right-handed, and the left if you are left-handed.