Can I use a seat protector? September 03, 2020 07:12 Updated Orbit does not recommend using any product that has not been crash tested with the car seat. Related articles Does my car seat expire? When does my car seat expire? G5 Infant Seat User Guide How do I remove and install a G5 Infant Car Seat Liner? Why a Merino Wool + Polyester blend? What is your price adjustment policy?