Ulla Johnson Marigold Western Day Dress size M Medium The Marigold Dress is a forever classic Ulla Johnson silhouette crafted from Ulla's floral printed shadow stripe shirting fabrication. Fabric: Lightweight, Non-Stretch Weave Long Sleeves With Button Cuffs Floral Print And Ruffle Trim Ties At Neckline And Drawstring At Waist I found a repaired seam under the arm when measuring. armpit to armpit is 21 inches across. I added a photo. thanks