Exposed zipper look became rather fashionable recently. When it is properly done it can elevate the whole design and add an interesting detail to your dress, skirt or jumper. Exposed zipper can be placed in the middle of a garment piece, between two components of a garment or into the seam. Besides obvious functional role (putting on a garment or closing a pocket) it can be used as a construction element or as an embellishment.
The following method of sewing an exposed zipper doesn't requires a seam at all. The technique is similar to a bound buttonhole process scaled up five times. A separate piece of fabric is used to make a faced opening. You can go with the same fabric, or with a piece of lining if the thickness is too great. Stay is used to achieve a crisp lines and prevent stretching.