What are heat resistant wigs? There are two types of heat resistant wigs. The first and most common of these are the wigs that are made with a special chemically treated fibres that make the wig hair resistant to high temperatures. This allows the wig user to safely straighten or curl the wigs just as they would their own hair without having to worry about damage to the wig. The second type of wigs that are blended wigs which comprise of both human hair and synthetic fibres. Both types of heat resistant wigs provide flexibility and affordability. Price is the main benefit as wig wearers can enjoy the benefit of paying less for a wig that is much like a human hair wig.