United Kingdom Size 31–33 to US: 2XL (42–44)

United Kingdom Size 31–33: Corresponds to a waist stretch range of 78.7–83.8 $\text{cm}$ (31–33 $\text{in}$), hip circumference of 96.5 $\text{cm}$ (38 $\text{in}$), thigh clearance of 55 $\text{cm}$ (21.7 $\text{in}$), and fit style Briefs, Boxers & Boxer Briefs.

US: 2XL (42–44): Corresponds to a waist stretch range of 106.7–111.8 $\text{cm}$ (42–44 $\text{in}$), hip circumference of 119.4 $\text{cm}$ (47 $\text{in}$), thigh clearance of 67 $\text{cm}$ (26.4 $\text{in}$), and fit style Extended Boxers & Plus Boxer Briefs.