Main menu:
Base
It is a polyurethane thicker than Thin Skin.
Poly it is user only in combination with lace; usually it is inserted as 2 cm thick in the borders of hairpiece, to enable the adhesion through tape (for easier maintenance). The Poly-areas are usually the sides and the back where the hairs are not exposed.
In the front it is suggested the usage of lace for a better natural effect.
As in poly-skin, hairs can be injected or knotted.