Sidi half-sizes

[Drosophila]

If the difference is only 2mm I'd be inclined to go up a whole size.

That's exactly what I was thinking.

Is there any way you could go back to the LBS to measure different sizes of the shoes they have there? Either that or contact Sidi directly and ask them for more information on half sizing.

No, they sold the 38 Geniuses and the rest are 41 and up.

Ironically, if I hadn't tested the Geniuses, I would've ordered the size 39 Wires without even thinking.