This type of stitch is called a catch stitch and is great for when you need to hem heavier/thicker fabrics. Provided you select a thread that matches the colour of your garment, the stitch is virtually invisible from the outside.

Music:
Rhodesia by Twin Musicom is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/...)
Artist: http://www.twinmusicom.org/