United Kingdom Size 28 to US: 34

United Kingdom Size 28: Corresponds to a waist size of 70 $\text{cm}$ (28 $\text{in}$), total strap length of 85 $\text{cm}$ (33.5 $\text{in}$), and recommended fit classification Snug / Tailored.

US: 34: Corresponds to a waist size of 85 $\text{cm}$ (34 $\text{in}$), total strap length of 100 $\text{cm}$ (39.4 $\text{in}$), and recommended fit classification Standard / Regular.