Polyurethane has pale skin, baby blue eyes and gradient purple-pink hair styled with blunt bangs. His outfit is predominantly black, with his black small triangle earrings, nail polish, and wristbands all being black, he wears a black choker around his neck and wears a sleeveless spandex bodysuit, although his is black. Part of his bodysuit is cut, revealing a small portion of his thigh. He wears a white cloth belt around his waist.