These premium grain goatskin drivers style gloves are lined with 120 grams of Cold Keep? insulation. They feature a slip-on cuff, cotton binding, and a keystone thumb. Premium-grade grain goatskin. 120 grams of Cold Keep? insulation. Ergonomic keystone thumb improves durability, comfort, and dexterity while reducing hand fatigue. Overcast color on hem for easy size identification. Open cuff allows for easy donning and removal.