Button down long sleeve dress

long sleeve black dress. Full button down front closure. Unique curved button down design. buttons stop at knees then dress forming a slit from knee to calf/ankle. V neck with collar. fit and flare style - fitted to knees then flare out from there. mid calf length (I'm 5'5"). stretchy mid weight rib knit. good quality and love the design just doesn't fit. Size US 6 or Medium. like new condition - worn once