Banana Republic Black Ribbed Tunic Sweater Poncho Vest XS/S runs large

Banana Republic Turtleneck Poncho like Sweater Vest Has side tabs that keep it closed, see pic 3 for reference Size: XS/S but runs very large similar to a 14 Color: Black Soft Ribbed Cotton Blend Knit, long tunic length great with leggings I removed fabric tag but I can’t wear wool so I know there isn’t any. Only washed & worn once.