TheRov: Reb Moshe who is the posek acharon for the USA clearly stated that the gedolei acharonim in shulchan oruch permitted sheitels even if they looked exactly like hair and were not choshesh for such maris ayin, and that even if a husband was against sheitels, he has no right to forbid his wife from wearing one. They are 100 percent mutar no matter what they look like, as long as they cover her hair.
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