Our briefcases are made from a high quality garment grade leather, they are soft and very durable while continuing to be lightweight. We use only the highest quality plastic fittings, stronger and lighter than metal. They don't go off in metal detectors, which is a very nice advantage! Rivets on the handles go all the way through both the leather and an upholstery board inside, giving the bags additional strength and durability. To clean our briefcase, use any mild soap and water or Murphy's oil soap, found in any grocery, store mixed with water. The natural markings and subtle variations in color are your assurance of genuine leather.