They're both composed of 100 percent human virgin hair and Swiss laces of the highest quality.Ā Lace front wigs are separated into two varieties based on the area of laces: 13x4 lace front wigs and 13x6 lace front wigs.Ā A full lace wig is constructed entirely of lace and has a larger lace area than a lace frontal wig. Because the lace is full around the head, full lace wigs are more adaptable