The Steiner STI-0215L 0215-L Mega MIG Gloves are premium heavyweight grain goatskin split cowhide back palm reinforcements that are 4.5-inch cuff size. They are made to provide the best protection for your hands while welding. The gloves are also made with a premium goatskin split cowhide back palm reinforcement for extra durability. The Steiner STI-0215L 0215-L Mega MIG Gloves are premium heavyweight grain goatskin split cowhide back palm reinforcements that are 4.5-inch cuff size. They are made to provide the best protection for your hands while welding. The gloves are also made with a premium goatskin split cowhide back palm reinforcement for extra durability.