Dabi is a slim, tall man in his early twenties. He has black hair that spikes upward at the end and hangs over his eyes, which are a shade of turquoise in color.
Dabi's appearance is distinguished by a wide expanse of dark, wrinkled burn scars that cover his face, arms, legs, and much of the rest of his body. These scars are punctured in places by hoops and staples.
Dabi has both his ears pierced and lacks earlobes on both sides of his face. He wears a nose piercing as well.