This pair of NOS Sidi Genius 7 road shoe features:

NOTE: Until recently, Sidis shoes have run narrow (Standard/"D") in sizing and the recommendation was to go up a size from what you normally wear. This pair follows the older method of sizing so you may have to consider that before purchasing. 
More help on Sidi sizing:

1) Trace your feet (wearing the socks you would with the shoe) onto paper.
2) Measure from the center of the heel to the tip of longest toe. If one foot is longer, apply that measurement to sizing your fit.
3) Record the measurements in millimeters.
4) Use the size chart below to see whether your feet are a good match for this SIDI EU size 42. 
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

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