These Kinco Heatkeep Thermal-lined Full-Grain Buffalo Driver’s Gloves are made of grain buffalo leather, the strongest leather available in a glove. Kinco Full-Grain Buffalo Driver’s Gloves have a softness similar to cowhide and feature a keystone thumb, leather wrist hem and shirred elastic back for a snug fit. Available sizes: M (8-9), L (9-10) or XL (10-10.5).