Invisible zips are a type of zipper designed to be discreet and hidden within the fabric of a garment or item. Unlike traditional zippers, which are visible on the outside, invisible zips have their teeth concealed, creating a smooth and seamless appearance. This makes them popular in fashion for dresses, skirts, and tailored garments. The installation of an invisible zip requires a special foot on a sewing machine, allowing for precise stitching close to the zipper teeth. When closed, the zip blends seamlessly with the fabric, enhancing the overall aesthetic of the piece while providing functionality.