"Custom" means that your hair replacement system suits your needs. The shape and size of the new Toupee will match your unique bald pattern. It will go through the mesh bottom size, color board, density board, curve board, shape of the front, hair direction, hair length, hair curve, hair proportion, hair position, hair direction, hair type, stitch selection and other steps, so that custom hair replacement and your own hair naturally blend. There are two ways to help: 1. Send back a mold and a sample of your own hair (to match color and frizz, etc.). Contact us to find out how to make the mold. 2. Send back your old system for reference. So we can make a perfect copy.