S   M   L
PTP
15.5-16" 16.5"-17" 17.5-18"
Waist 13.5" 14.5" 15.5"
Length 18" 18.5" 19"

*Model is 1.70m, UK 4/6 (PTP15", Waist 11.5") and wears size S.

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

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