Sidi Shoe Sizing
Size
Foot Length (mm)
U.S. Mens
U.S. Womens
36
220
3.3
4.8
36.5
224
3.7
5.2
37
227
4.1
5.6
37.5
230
4.5
6
38
233
4.9
6.4
38.5
237
5.3
6.8
39
240
5.7
7.2
39.5
244
6.1
7.6
40
247
6.4
7.9
40.5
250
6.8
8.3
41
253
7.2
8.7
41.5
257
7.6
9.1
42
260
8
9.5
42.5
264
8.4
9.9
43
267
8.8
10.3
43.5
270
9.2
10.7
44
273
9.6
44.5
277
10
45
280
10.4
45.5
284
10.8
46
287
11.2
46.5
290
11.6
47
293
11.9
47.5
297
12.3
48
300
12.7
48.5
304
13.1
49
307
13.5
49.5
310
13.9
50
313
14.3
50.5
317
14.7
51
320
15.1
51.5
324
15.5
52
327
15.9
52.5
330
16.3