Renji has brown eyes and long crimson hair, which is usually kept in a high ponytail. with a widow's-peak. His upper body is covered in tribal tattoos, covering his entire back, much of his chest, his extremities, and even much of his forehead.

Renji also occasionally wears a shirt with 'Red Pineapple' printed 

in his spiritual form he wears a standard Shinigami shihakushō, though he usually includes some sort of headgear, usually expensive glasses or a a white headband

