Facial Features: Sharp, angular facial lines matched with permanent scowls or intense, manic grins during battle. His eyes are narrow and bright red.Hair: Thick, wildly spiky ash-blond or sandy-blond hair that shoots out in sharp tufts, featuring choppy bangs hanging over his forehead.Build: Lean, highly muscular, and athletic frame of average height (around 172 cm / 5'7.7").School Attire: Wears the standard U.A. High gray blazer unbuttoned, slumps his pants loosely to sag at the ankles, and explicitly leaves out the mandatory red school tie.Hero Costume: Features a tight, black, sleeveless tank top with an orange "X" across the chest. His most distinct gears are massive, green, grenade-shaped gauntlets on his forearms that store his nitroglycerin-like sweat to unleash catastrophic blasts. He also wears a black head mask with large, flare-shaped ribbons mimicking explosions. Explosive & Short-Tempered: He is incredibly aggressive, loud, and volatile, frequently screaming at classmates and opponents alike. He is highly prone to swearing when irritated.