This cap construction is for no glue lace front wigs, or glueless lace front wigs. The wig is full hand-tied. The front part is Swiss lace or French lace, other part is stretch lace. There is an adjustable strap at nape and a elastic at sides. A 4" x 4" silk top or 5" x 5.5" silk top can be added on the top of the cap.