The default outfit of Nijisanji EN's Uki Violeta, as seen in post #5461541.
His default outfit comprises a very long sleeved grey hoodie, multiple purple chest belts and black belts, a black coat fastened by a yellow coat over his hoodie, black nail polish, black combat boots, purple pants with a purple belt, and another purple belt around his left leg.
This tag implicates uki_violeta (learn more).