Invisible stitching is a technique in which the zipper is not visible from the outside of the fabric after sewing is complete. This method is commonly used on clothing where a clean and discreet finish is desired. To achieve this, it is important to choose a thread with the same tone as the fabric. If this is not possible, use the closest color, preferably darker ones.
The invisible zipper is one of the products in our mix, check out more about it: