Kinco&reg; Premium Grain Pigskin Drivers Gloves (Men&#39;s XL)" /> Grain Palm with Suede Pigskin Leather Back Wraparound Leather Index Finger for Long Life Keystone Thumb - A keystone thumb provides added reinforcement and padding at the point on the glove that receives the most wear. It is a double thickness of leather that overlaps onto the base of the thumb. Shirred Back for Snug Fit Great for Farm & Ranch - Construction - Yard Work