Navy and white colored dress
Pinstripe slip midi dress.
It shows a plunging V neckline (triangle top) front/back, adjustable spaghetti straps, and a center midriff peephole with a bust string tie.
It also has an inverted V empire waist, upper front torso pleats, side pockets, and an invisible zipper.
Norah is 5'4 and is wearing a small