US 9 = INSIDE 16.5 CM = EUR 27
US 10 = INSIDE 17.2 CM = EUR 28
US 11 = INSIDE 17.8 CM = EUR 29
US 11.5 = INSIDE 18.5 CM = EUR 30
US 12.5= INSIDE 19 CM = EUR 31
US 13 = INSIDE 19.7 CM = EUR 32
US 1 = INSIDE 20.5 CM = EUR 33
US 1.5 = INSIDE 21CM = EUR 34
US 2.5 = INSIDE 21.6CM = EUR 35
US 3 = INSIDE 22.2 CM = EUR 36
1234