Here follow check your right size and compare :
ITALY - IT
38
40
42
44
46
STANDARD
XS
S
M
L
XL
UK - AU
8
10
12
14
16
FR - ES
34
36
38
40
42
DE
32
34
36
38
40
USA
2
4
6
8
10
JP
5
7
9
11
13
NUMERIC
1
2
3
4
5