PVC fetishism refers to shiny clothes made of the synthetic plastic polyvinyl chloride, commonly known as PVC. These fabrics usually consist of a backing woven from polyester fibers with a surface coating of shiny plastic. The plastic layer itself is typically a blend of PVC and polyurethane, with 100% PVC producing a stiff fabric with a glossy shine.
One reason why tight shiny fabrics may be fetishised is that the garment forms a second skin. So wearers of PVC garments may be perceived by the viewer as being naked.
PVC can also be polished to be shiny and can be produced in bright colors, adding to the physical sensations produced by the material. The tightness of the garments may be viewed as a kind of sexual bondage.
Tight shiny fabrics? Bright colors like Sizzling pink? Sexual bondage? A made to order PVC mini dress for $52?
Really, how much more do you need to know?