A stacked bob has layers stacked at the back of the head, giving your hair an angled look. Khamis Maious, a celebrity hairstylist, says, “The stacked bob can incorporate bangs and includes both long and short styles. In longer styles, the layers start near the base of the neck and gradually get shorter towards the crown. While in shorter styles, the back layer starts at the nape and gets shorter towards the top of the crown.”