Moonlight Y&S Size M? Red Button-Up Short Sleeve Jacket Roll-Tab Sleeves Pockets

Condition: *Missing tags with size, fabric, and care info. Moderate wear throughout, esp. under arms (see photos). No other issues. Size: Unknown; please check measurements below. My best guess is about a Medium. Color: Red Design: Button-front short sleeve jacket with roll-tab sleeves. Has pockets. Materials: Tag missing, but fabric feels like linen to me. Measurements (approximate) Shoulders: 28" around Bust: 41" around Waist: 46" around Shoulder to Hem: 25" at front, 27.5" at back Sleeve length: 14" unrolled *Y11