... the toupee included single knot, double knot, hidden knot,injected knot etc..6)The material included Swiss lace, French lace, Mono, PU ... We have different kinds of base materials, like Fine Mono (mesh), Lace, Polyurethane (skin), etc8. Base color: Fresh, pink, light ... only front12. Front design: Lace, Scallop, Smooth Line, Skin.13. Knots: Bleached knots, single knots, double knots and hidden knot are ...