Here's what my friend had to say about these shoes,
This is an interesting shoe from Sidi. It fits like a standard Sidi (subjective, but great for my foot), stiff carbon sole, and has wire enclosures. What differentiates this model is the “Vent” nature of the leather. In my opinion, this is a great shoe in climates with four seasons of riding where there is also a HOT summer (like Utah). The venting is noticeable in the heat, which means your feet swell less than other leather shoes. However, once the temperature drops, you can simple ride with a toe cap or shoe cover. The only thing I’ll point out that I don’t necessarily love is Sidi’s wire adjustment compared to the latest version of BOA. This isn’t a deal breaker per se, I just think the BOA is a bit more refined in its second version. Great shoe though, and again hard to beat the vented leather for four season riding.