US: XS (0–2) to United Kingdom Size 16–18

US: XS (0–2): Waist contouring range of 58.4–63.5 $\text{cm}$ (23–25 $\text{in}$), full hip range of 83.8–88.9 $\text{cm}$ (33–35 $\text{in}$), style variants Thongs, Bikinis & Cheeky Cuts, and fit classification Petite Contour Fit.

United Kingdom Size 16–18: Waist contouring range of 76.2–81.3 $\text{cm}$ (30–32 $\text{in}$), full hip range of 101.6–106.7 $\text{cm}$ (40–42 $\text{in}$), style variants Briefs, High-Waist Panties & Boy Shorts, and fit classification Comfort Stretch Fit.