Theory Cashmere Sweater

Theory 100% cashmere karenia sweater. Excellent used condition. Purchased from Bloomingdales. Worn only a few time and washed twice with soak detergent and laid flat to air dry. Stored folded. We usually dry clean our cashmere but the tag says to hand wash. The size is listed on the tag is P but I’m listing it as a petite medium because of measurements. Please review measurements for fit. Or ask for additional measurements if needed. This is my sister’s sweater and it no longer fits her. The color is navy. I think the main photos look a bit lighter than it is in real life. The photos of the tag show the color better. Armpit to armpit is approx 22”. But lower down a few inches (more waist level) is approx 20.5”. Front length (from shoulder seam) is approx 24”. Back length is approx 25.2”.