Vintage sleeveless pleated dress medium

Sleeveless navy print day dress with narrow self fabric belt. The fabric is crisp and light, fiber content is unknown. Labeled size XL. Fits like a size 10, check measurements to determine fit. All measurements are taken lying flat: Bust pit to pit across front: 20 inches Waist; 18.5 back bodice length measured neck edge to waistline: 15.5 bodice side seam length: 6.5 Skirt length: 27.75 inches Hips: Free Belt size adjusts from 29.75 to 36.25 inches