If you routinely take the car to get to your favorite running trails you know what it's like to climb into the car soaking wet after a workout. The Waterproof SeatShield is a major upgrade from using a beach towel to protect the upholstery and it takes only a minimal investment. The material also resists odors and can be left in the car between workout, and tossed in the washing machine when the time comes to clean it.