Q. What does Rav Shlomo, shlit"a hold about the new lace-top and lace-front sheitels? Are they permissible to wear?
A. Rabbonim from Boro Park, Lakewood and other communities, including the Skverer Dayan, Rav Mechel Steinmetz, the Kosover Rebbe and others have recently expressed their concern about the new
“Lace Top” wigs that are extremely difficult to discern from natural hair, adding that the lace is transparent and the natural hair or scalp underneath may be visible. The design seeks to create the appearance that the sheitel hair is actually growing from the human scalp.
Their above description defeats the purpose of tznius inherent in a sheitel and is therefore prohibited by Halacha.
Besides, it induces other women not to wear a sheitel at all, since the also think that those Frum ladies are not wearing a sheitel.
Horav Shlomo Miller's Shlit"a opinion is that they should be avoided
Rabbi A, Bartfeld as advised by Horav Shlomo Miller and Horav Aharon Miller Shlit'a