Tanjiro is a young man of average height with lightly tanned skin and an athletic, muscular build. His hair is ruffled and black with red tips and is swept back to reveal his forehead. His eyes are wide and dark red, fading into a burgundy hue with white pupils that appear lighter toward the lower section of the iris, while the upper portion is markedly darker. He bears a distinct scar on the upper left of his forehead. It is also noted that Tanjiro’s hands are unusually rough for someone his age. Tanjiro wears the standard Demon Slayer uniform that is similar to the Japanese military uniforms of the Taishō era. It consists of a button-up jacket with a stand-up collar and long sleeves, featuring silver buttons and a shirt pocket on the left breast, with the kanji for Destroy (滅めつ, Metsu?) engraved on the back of the uniform. Beneath the jacket, he wears a white long-sleeved collared undershirt. The uniform also includes tattsuke-hakama pants tucked, fastened with a white belt around his waist, and strapped securely around his calves with a pair of buttoned white kyahan, along with tabi socks that match the color of his uniform. On his feet, he wears a pair of white zōri sandals with dark red straps. Over this, he dons his signature checkered haori. He carries a large wooden box on his back (which was a gift to him from Sakonji Urokodaki), where his sister sleeps as they travel during the day.