Size Waist Hip Inseam AU/UK/NZ US
XS 61-65 81-85 59 4-6 2-4
S 66-70 86-90 60 8 6
M 71-75 91-95 61 10 8
L 76-80 96-100 62 12 10
XL 81-85 101-105 63 14 12

All measurements are in cm.
Nicola is 168cm, AU 6; wears size XS.