You are familiar with the following items.
I. Raincoat II. Seat covers
In both of the above items, polymer of vinyl chloride is used. This polymer is choosed for such applications because

Of its tendency to get coated on a cloth base and tougher nature as compared to polythene

Of its higher melting point and very reactive nature

Of its lower melting point and unreactive nature

Of its tendency to get rolled into thin sheets like polythene