Vintage Firework Sweater Metallic Teal Purple Pink

Totally rad vintage fireworks sweater. Black knit with large all over fireworks design. Metallic Turquoise blue, metallic purple, and metallic pink. Long sleeves. Crew neck. Ribbed knit trim. No marked size, materials, or brand tags. Feels like acrylic. Assuming x-large / XL based on how it fits me, but please review measurements to ensure fit. 23" from pit to pit laid flat. 30" in length from shoulder.