Brand New with Tags Pretty Kitty Fashion 50s Black Sleeveless Satin Cocktail Dress – N.B This Style has a USA label inside…USA 36 = UK 8, USA 38 = UK 10, USA 40 = UK 12, USA 42 = UK 14, USA 44 = UK 16, USA 46 = UK 18, USA 48 = UK 20. The approx measurements for this dress are as follows when laid flat Size 8 – underarm to underarm 16 ½ ” and waist 13″ across Size 10 – 17″and waist 14″ across Size 12 -18″ and waist 15″ across size 14 – 19 ” and waist 16″ across size 16 – 20″ and waist 17″ across . size 18 – 21 ½” and waist 18 ” across size 20 – 23″ and waist 19 ½ ” across