The foundation patch can be carefully sewn to the underside of the front of your wefted wig if it has no skin taping area already provided.
Remember to fix it so that the shiny side is on the outside. This will create a suitable foundation for the use of double sided medical tape providing a firm fixing of the wig to the scalp.
The patches can also be cut and sewn in different areas such as the ear tabs and nape area should you require additional taping positions.