The Easy Rider Car Harness for a Medium Dog (21 inch to 25 inch chest girth) is made of tough nylon web material using secure metal hardware. The wide, soft padded chest support is comfortable, non-irritating and provides extra protection to the canine chest and rib areas. The Easy Rider is the best designed safety and control gear for canine, vehicle travel and doubles as a standard walking harness when out of the car.