When making a bag, you need two main components, the pocket part itself which holds what the bag is being used for, and the strap in which you use to hold onto the bag. Meaning, in order to make the shoulder bag, you will NEED a piece of leather for the strap. Beading for the trim is a decorative feature and serves no purpose besides aesthetics to the bag which is a want, along with fringe, and fabric to line the interior.
