The best way to update the classic taffeta ballgown? Define the waist, add pockets, and most importantly, make it backless! V neckline Ballgown Luxe Taffeta Invisible tulle side gussets slim your sides Pockets Invisible center back zipper Cathedral train Jenny by Jenny Yoo Size 12. Approximate measurements are: Bust 38.5", Waist 31.5" Size 18. Approximate measurements are: Bust 43.5", Waist 36.5". Has been tried on in store, but appears to be in excellent condition. Current style. Recent price: $1,300.