RefrigiWear Warm Fleece Lined Fiberfill Insulated Cowhide Leather Work Gloves MATERIAL: Crafted to last with a construction of rugged, split cowhide leather; Additional, reinforced leather on palm and thumb crotch gives you more durability in areas where you need it most INSULATION: 160g fiberfill plus foam insulation with tricot lining makes these gloves extremely warm and comfortable in cold conditions DURABILITY: Kevlar threading at the seams creates more durability for years of use SAFETY CUFF: Safety cuff with heavy-duty knit wrist provides added coverage to help keep your wrists safer and warmer COMFORT RATING: -20 degree Fahrenheit temperature rating. Ratings are based on outershell material, insulation thickness and material as well as glove construction