XS S M L XL
PTP 15" 16" 17" 18" 19"
Waist 12.5" 13.5" 14.5" 15.5" 16.5"
Length 15.5" 16" 16.5" 16.5" 16.75"

*Model is 1.73m, UK 4/6 (PTP 15.5", Waist 12") wears size S.

If you are in between size for PTP/Waist, it is best recommended to size up.

*In between sizes refers to your measurements falling between 2 sizes, example size S & M.