Kakyoin was a young man of average to above-average height and fit to slender build. He is only seen wearing his school uniform (commonly colored dark green). Kakyoin keeps medium-length hair (often red), characterized by a large, twisting appendage hanging before his face. He wears earrings in the shape of a long, fine arch, tipped by small spheres. Later, Kakyoin acquires two thin scars vertically crossing both eyes; which he variously hides with a fine pair of dark sunglasses.