All shoes at Labforum are listed as US sizes. Here you can see your EU size if you aren't familiar with the American size chart.
ADIDAS
| US |
6 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
12.5 |
| EU |
38 1/3 |
40 |
40 2/3 |
41 1/3 |
42 |
42 2/3 |
43 1/3 |
44 |
44 2/3 |
45 1/3 |
46 |
46 2/3 |
47 1/3 |
C1RCA
| US |
6 |
7 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
14 |
| EU |
38 |
39 |
40.5 |
41 |
42 |
42.5 |
43 |
43.5 |
44 |
45 |
45.5 |
47 |
48.5 |
DC
| US |
5 |
6 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
12 |
13 |
| EU |
37 |
38 |
39 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
44.5 |
45.5 |
47 |
ELEMENT
| US |
5 |
6 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
12 |
13 |
| EU |
37 |
38 |
39 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
44.5 |
46 |
47 |
EMERICA, éS & ETNIES
| US |
6 |
6.5 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
| EU |
38 |
38.5 |
39 |
40 |
41 |
41.5 |
42 |
42.5 |
43 |
44 |
45 |
45.5 |
46 |
47 |
LAKAI & DVS
| US |
6 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
| EU |
38.5 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
44.5 |
45 |
46 |
47 |
48.5 |
OSIRIS
| US |
6 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
14 |
| EU |
38 |
39.5 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
45 |
46 |
47 |
48 |
48.5 |
SUPRA
| US |
6 |
6.5 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
| EU |
38.5 |
39 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
44.5 |
45 |
45.5 |
46 |
47 |
VANS
| US |
4.5 |
5 |
5.5 |
6 |
6.5 |
7 |
7.5 |
8 |
8.5 |
9 |
9.5 |
10 |
10.5 |
11 |
11.5 |
12 |
13 |
| EU |
36 |
36.5 |
37 |
38 |
38.5 |
39 |
40 |
40.5 |
41 |
42 |
42.5 |
43 |
44 |
44.5 |
45 |
46 |
47 |