Soft Chenille burgundy Y2k fitted v neck king sleeve sweater

Soft Chenille burgundy Y2k fitted v neck king sleeve sweater. Tag states medium but I feel fits more like a small pictured on size 5/6 person. Good but used condition. Very soft. Has some stretch. Flat lay measurements Pit to pit: 17” Waist: 15” Waistband: 14” Sleeve length from shoulder: 26”