Stretch Mesh
From wipipedia.org

Stretch Mesh is a form of Spandex which has been manufactured as a mesh by design. The holes are much smaller than in fishnet, typically only a few millimetres across.
It may be used in the manufacture of a range of garments, such as dresses, stockings, body stockings, bodysuits, babydolls and panties. Such garments will generally be somewhat see-through, due to the holes.
Some stretch mesh is given a glittery appearance by sticking on lots of shiny dots.