단발머리, or "bob haircut," is a popular hairstyle characterized by hair that is cut straight around the head at about jaw-level. This style can vary in length, texture, and shape, making it versatile for different face shapes and personal preferences. The bob haircut has a rich history, gaining popularity in the early 20th century. It has been sported by many famous figures, including Coco Chanel and Audrey Hepburn, and continues to be a fashionable choice today, often associated with modernity and elegance.