Also see " vinyl window". Actually it's full name is vinyl coated fabric. It is made up of several layers of fabric, rubber and vinyl. The last layer is treated for resistance to abrasion, weather and UV. This layer is also colored and imprinted with a "grain". Grain is the pattern pressed into the vinyl. That is why you see the same specs for Pinpoint vinyl, Cabriolet vinyl, Sailcloth vinyl, Euro topping or Colonial grain. They are the same material with a different pattern embossed on the final layer. The different grains can be seen at these links.
Vinyl is cost effective and highly versatile. Vinyl is strong, durable, abrasion and moisture resistant; withstands rust and corrosion; is electrically non-conductive and has excellent fire performance properties. Vinyl can be produced in almost any color, with products ranging from opaque to crystal-clear.