How to sew piping on to an edge
You can finish an edge in many ways. With bias binding, facings, narrow hem and like this method I am going to show you here: A piped edge
You can make your own piping. However, I find the piping you can buy in fabric stores very good, so I buy it if I can find a matching color.
You can use piping as a design detail and sew it into a shoulder seam as I have done on the dress you can see in the picture. You can see how I have made the neckline here.
Place the piping edge on the right side of the fabric.
With a zipper food, sew as close to the piping edge as you can get. NB! A piping edge is cut on bias, so you can shape it over curves and edges with shapes.
Overlock the raw edge, all layers together.
Turn the seam allowance to the wrong side of the fabric and press from the right side
Using a zipper foot topstitch from the right side 0.2 cm from the piping
Now you have a piped edge. This is an ease and pretty way to finish an edge.