Your pet can do anything on the seat with the Roadie on that he can do with it off. Occasionally some sizes are on back order. Some special orders are subject to production turn over. We use Priority Mail for the majority of our shipments. I have a growing puppy.
Proper fit is essential.
Puppies need to be sized just like full grown dogs. If the harness is too big it will fall off. Dogs catch on very quickly. Once a dog realizes that the Roadie means that they are going for a ride in the car, they quickly begin to love the harness. Also, because this harness is orthopedically designed, dogs are comfortable in the harness.