Cordova Safety Products grades leather according to the area on the hide from which it is cut. The premium-grade leather comes from side or shoulder and from areas higher on the animal that receive the least amount of movement. Select-grade leather is selected from the areas of the hide that don’t quite make the Premium grade, but are still a higher-quality leather. Cowhide is comfortable, durable, breathable and offers excellent abrasion- and heat-resistance. The Cordova Safety Products brand Tuf-Cor™ select shoulder split, leather welder features a full sock lining and fully welted seams. It is Aramid-sewn for increased durability and strength and offers a wing thumb, for open-handed work.