Vinyl is a type of plastic. So, I'm a bit confused by your question. There are many types of plastics, including vinyl or vinyl acetate, etc. Plastic is an all encompassing term for films that develop from various hydrocarbon molecules, and can range from the very rigid to very flexible. I think you would do better to ask about various types of rubber or plastic pants, by manufacturer or model, or however you wish to describe them. As for me, I wear Suprima vinyl plastic pants, in the oil-resistant Yellow-X color.