Chest measures across the bust 1” below the armhole, seam to seam.
Length is measured from the highest point of the shoulder to the bottom hem.

SIZE SM MD LG XL 2X 3X 4X
CHEST 18.25" 20.25" 22" 24" 26" 27.75" 29.75"
LENGTH 26.6" 28" 29.4" 30.75" 31.6" 32.5" 33.5"