***AU size 1 is a US size 4-6*** Dress is pre owned but kept in very good condition. Strapless dress Printed Cotton-gauze Shirred trims Knotted Gathered Fully lined Concealed hook and zip fastening at back Non-stretchy fabric Mid-weight fabric Dry clean Imported 100% Cotton 000 = UK 4/ US 00-0/ FR 32 00 = UK 6/ US 0-2/ FR 34 0 = UK 8/ US 2-4/ FR 36 1 = UK 10/ US 4-6/ FR 38 2 = UK 12/ US 6-8/ FR 40 3 = UK 14/ US 8-10/ FR 42 4 = UK 16/ US 10-12/ FR 44 5 = UK 18/ US 12-14/ FR 46 6 = UK 20/ US 14-16/ FR 48 7 = UK 22/ US 16-18/ FR 50