Measurements taken with garment laid flat, with side seams vertically straight so that front opening overlaps:

Armpit to armpit across front 22.5”
Front length from shoulder/neckline seam to bottom 44.25”
Side length from underarm seam to bottom 33”
Shoulder seam to shoulder seam across back 19.25”
Shoulder seam to sleeve bottom 23”
Belt length 73”