Armpit to armpit is about 17 inches, waist flares in at 15” then hips 17”. Does have stretch!! Form fitting. Lower back. Sleeve length almost 11”. Length 37”. Junior size XL. PLEASE MEASURE. I am 5’9” and 165 lbs, I buy size 10 in women’s dresses and this fits me fine! Not too tight. It would probably fit a size 8 as well, but I would strongly encourage you to measure yourself or a dress you own already to compare unless you are a junior XL anyway. This goes below my fingertips, mid thigh