Extended Deep Part Syn June lace wig is made of 100% premium synthetic fiber . Natural Parts, Soft Lace, and Beautiful Hair! Our New Extended Part lace wigs are to die for! These wigs are handmade with 100% premium synthetic fiber. There are a variety of styles and colors to choose from. Bob styles, long styles, layered looks, wavy, or straight, pick your preference. This hair is heat safe up to 360 degrees Fahrenheit or 180 degrees Celsius.