A 13x4 Lace Wig is a wig with a hairline measurement of 13 inches and a 4 inches deep lace at the front of the wig. These wigs allow for a more natural look. They also allow for more styling. There are two types of lace frontal wigs: human hair and synthetic hair.   Human hair 13x4 Lace Front Wig give a more natural look. Human hair wigs give more styling options, can be...