Infant Hole In Heart More Condition_symptoms Does Anyone Know How To Make A Infant Car Seat Carrier Cover?

Does anyone know how to make a Infant Car Seat Carrier Cover? - infant hole in heart more condition_symptoms

My cousin is a baby and did not cover carseat. The bridge I'm talking about is one that goes in the back seat of the car, you can zip or there is a hole in the head. If so, it is a model that can be purchased? And what are the dimensions of the material required?.