The default costume of Nijisanji EN's Hex Haywire, as seen in post #5887712.
His default attire (the XSOLEIL School Uniform) consists of a Black Jacket, black Collared Shirt with a Red Necktie and white Suspenders, blue Plaid Pants, black shoes. He also has multiple Ear Piercings, Rings, and Bracelets for accessories.