Vintage 1980s Weather Wise by Micki Royal Blue Shimmer Button Up Trench Coat Raincoat with Pockets

Women's Size L (Tag says 11/12.  Be sure to check measurements.)

Measurements:
armpit to armpit (laid flat) 22.5"
arm length (armpit to cuff) 17.5"
length (back of collar to hem) 46.5"