If there are straight hair, you can consider a short bob with an undercut in the back, and layering pieces across the cut.
A bob ties are stacked that have straight and wavy hair. It creates dimension at the back while leaving plenty of length at the front.
And this cut that is inverted will show you how to transform your hairstyle by loose waves and choppy ends.
This softly layers bob is light and textured due to the sliced tips as well as an ethereal finish.