XS- Australian size 8, UK size 8, USA size 4

S- Australian size 10, UK size 10, USA size 6

M- Australian size 12, UK size 12, USA size 8

L- Australian size 14, UK size 14, USA size 10

XL- Australian size 16, UK size 16, USA size 12

XXL- Australian size 18, UK size 18, USA size 14

3XL- Australian size 20, UK size 20, USA size 16