United Kingdom Size XL (Extra Tall) to US: B / S

United Kingdom Size XL (Extra Tall): Corresponds to a stature height range of 168–180 $\text{cm}$ (66–71 $\text{in}$), weight range of 70–85 kg (154–187 lbs), denier rating 30D–100D Heavy Opaque / Control, and fit classification Tall / Generous Rise Fit.

US: B / S: Corresponds to a stature height range of 152–165 $\text{cm}$ (60–65 $\text{in}$), weight range of 50–62 kg (110–136 lbs), denier rating 15D–60D Sheer to Opaque, and fit classification Standard / Regular Fit.