NICOLI US EU UK INCHES CM
30 12 30 11 7.1 18.0
31 13 31 12 7.4 18.7
32 13½ 32 12½ 7.6 19.3
33 1 33 13 7.9 20.0
34 2 34 1 8.15 20.7
35 3 35 2 8.4 21.3