US: 4 S to United Kingdom Size 6

US: 4 S: Features a height of 170 $\text{cm}$ (66.9 $\text{in}$), bust contour of 90 $\text{cm}$ (35.4 $\text{in}$), waist shaping of 71 $\text{cm}$ (28 $\text{in}$), hip flare of 96 $\text{cm}$ (37.8 $\text{in}$), and silhouette cut: Empire / Fit-and-Flare.

United Kingdom Size 6: Features a height of 165 $\text{cm}$ (65 $\text{in}$), bust contour of 82 $\text{cm}$ (32.3 $\text{in}$), waist shaping of 63 $\text{cm}$ (24.8 $\text{in}$), hip flare of 88 $\text{cm}$ (34.6 $\text{in}$), and silhouette cut: Natural Waist / Shift.