Size Bust Underbust AU/UK/NZ US
XS 75-79 66-70 4-6 2-4
S 80-84 71-75 8 6
M 85-89 76-80 10 8
L 90-94 81-85 12 10
XL  95-99 86-90 14 12

All measurements are in cm.
Netra is 180cm, AU 8; wears size S.