Shinobu is regarded as a beautiful, petite young woman with a small frame. This leads people to underestimate her due to her frail appearance. She has black hair with purple highlighted tips tied back into a "yakai-maki" bun using a butterfly-shaped pin. She has large deep purple eyes with no visible pupils and maintains an innocent look on her face most of the time. Shinobu dons the standard Demon Slayer uniform that consists of a dark purple straight-lined jacket, and hakama pants tucked in.