Top shoulder to center bottom hem opening measures approx. 22" (slightly shorter in back); lying flat across chest/bust pit to pit is 18" (totaling 36" all around including both front & back). Reminder, knit material - so will stretch somewhat for extended fit.
Good preowned condition: see multiple photo views (no stains, holes, nor tears noticed; minimal typical usage wear ~ few prior tiny label holes within inside top collar Designer tag).
Smoke-free home.