Citron Santa Monica Asian Inspired Long Tunic Blouse Size 0 Oversized

Pre-owned Citron Santa Monica Long tunic blouse, multi-colored, button down, size 0. Im not sure if it means 0X? but it definitely fits like a size XL. I wear a size 12 by comparison and this fits loosely. Good used condition but some wear visible throughout since its a silk material, has lot going on including beading & sequins. PTP: 21” Length: 34”