The synthetic materials used to construct artificial lawns are made up primarily out of 3 components: Polyethylene (PE): soft, skin-friendly, and durable. Polypropylene (PP): stiffer, durable. Nylon: harder and extremely durable.
The synthetic grass fibres and the infill (rubber and/or sand) determine what the field looks like. If black rubber is chosen for the infill then the surface will look different to a field infilled with green rubber material. What cannot be seen, but which is equally important, is the sub-base of the artificial grass pitch.