Tuckernuck Women's Black Shirt Dress Collar Cotton Poplin Size XS. Measurements Approx (Lying Flat) Labeled: XS Armpit to Armpit: 17.5” Shoulder to Shoulder: 12” Sleeve: 16.5” Length: 34” Condition: Gently preowned condition. Minimal signs of wear. See photos for close ups. If you have any questions, don’t hesitate to contact me!