US: Maximum / 69mm to United Kingdom Size Standard

US: Maximum / 69mm: Corresponds to a nominal width of 69 $\text{mm}$ (2.72 $\text{in}$), length of 220 $\text{mm}$ (8.66 $\text{in}$), average structural girth of 138 $\text{mm}$ (5.43 $\text{in}$), and fit category Maximum Bariatric / Ultra Wide.

United Kingdom Size Standard: Corresponds to a nominal width of 52 $\text{mm}$ (2.05 $\text{in}$), length of 185 $\text{mm}$ (7.28 $\text{in}$), average structural girth of 104 $\text{mm}$ (4.09 $\text{in}$), and fit category Standard / Regular.