S   M   L
Bust 16" 17" 18"
Waist 13" 14" 15"
Hip 18" 19" 20"
Length 33" 33.5" 34"

*Model is 1.70m, UK 4/6 (PTP15", Waist 11.5", Hips 16.5") wears size S

If you are in between sizes for bust, it is best recommended to size up. 
If you are in between sizes for waist, it is best recommended to size up. 

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