Wells Lamont Leather Palm Work Gloves, Insulated Grain Deerskin, Extra Large (3220XL) Leather: 100% deerskin. Back: 96% polyester, 4% spandex. Knuckle Strap: 100% nylon over neoprene. Finger Inserts: 60% nylon, 40% polyurethane. Lining: 100% polyester. Insulation: 100% 3M Thinsulate (100% polyester) Imported Protect your hands while you're out working in cold temperatures. Deerskin leather palm is naturally soft and flexible, with moderate abrasion resistance. Padded neoprene knuckle strap for knuckle protection and insulated with Thinsulate insulation. Stretch fabric back for added flexibility and comfort. Wells Lamont - Stubborn About Quality since 1907.