Hand-tied lace refers to a meticulous and labor-intensive process in wig-making where individual strands of hair are hand-knotted onto a lace base. This method creates a more natural appearance, allowing the wig to move and feel like real hair. The craftsmanship involved in hand-tied lace ensures a realistic look, especially along the hairline and parting areas, making it a preferred technique for achieving a more authentic and comfortable wig-wearing experience.