Sizing Your Armor
Take a loose tape measure and wrap around your wrist. Keep in mind that if you plan to wear several pieces at a time you may want to pick a size up for the ones that will be worn higher on your arm.
small: 6.0" or smaller (very petite wrists)
medium: measures 6.5-7" (average woman's wrist size)
large: measures 7.5"+
small: 7.5" or smaller
medium: 8" (average men's wrist size)