Genuine Adirondack Deerskin, durable, supple softness and pebble texture make this leather truly distinct. Finger and Thumb perforations provide air circulation to keep hands dry. They are Unlined to give you maximum dexterity and control. Without a doubt a beautiful driving glove. You can determine your glove size by measuring around your dominant hand (left or right) just under your knuckles excluding your thumb. Choose the size that is closest to the number you get from tape measure. For example, if you hand measures 7 3/4 inches, choose a size 8: S = 7½-8; M = 8½-9; L = 9½-10; XL = 10½-11.