DESC: When shopping for a car sear cover you will be hard pressed to find a material superior to sheepskin. Ba Ba Seatskins Britax Marathon car seat covers are composed of 100% sheepskin. ( Note: For those sensitive to animal products, this is REAL sheepskin.). Sheepskin acts as a natural insulator to keep your child cool in the heat and warm in the cold. Ounce for ounce, the hollow fibers of sheep's wool are stronger than steel. Ba Ba Seatskins genuine wool is naturally water resistant and can absorb u