Vintage Blair 80s Royal Blue Knit Polyester 3/4 Sleeve Midi Dress, Shoulder pads, Elastic waist, Pullover Peep Hole at Chest With Button Closure, Not lined, no pockets.  Good vintage condition for age please see last photo the right sleeve underside hem is unstitched about 3.5 inches. 

Measurements approximate:

Shoulder to hem 41 inch

Pit to Pit 17.5