You are considering a Marc Jacobs sweater

Labeled a size Medium, but fits like an XS. Please see measurements:

Length: 18"
Bust: 30" - 33"
Sleeves: 8"

The color is called "Red Rum", pinky-red and white boucle textured knit. Cropped fitted cut.

Cotton/Wool/Nylon.

Possibly shrunken due to sizing, otherwise in good pre-owned condition.