Measurement (In Inches) Size XS Size S Size M Size L
PTP  14.5" - 16.0" 15.5" - 17.0" 16.5" - 18.0" 17.5" - 19.0"
Length 15.0" 15.0" 15.5" 15.5"
Model is 160cm, UK 4-6 and she is wearing size XS.