UV protection 50+ blouse blue and white half sleeve

Designed in Australia 50+ UV protection blouse Half sleeves Blue and white rope design Poly spandex blend Tie at neckline New with tags size 20 PLEASE SEE MEASUREMENTS BELOW This seems like a medium. But please read below. BUNDLE AND SAVE Gently worn Smoke free home Approximately 20.5 inches from pit to pit when laid flat. Approximately 18 inches across the waist when laid flat . Approximately 29.5 inches in length.