The Sidi Vertigo was only one of my options when it came time to select a new riding boot. I considered a wide range back then, but I kept returning to the Vertigo. It was fairly new at the time, but had many fans already - many sizes were sold out at purchase time (I was lucky with my big feet this time). One thing which most noted was that Sidi makes the same boots for the consumer market as they do for the professional racers they sponsor, so all of the technology on the track makes it to the street. Since my plans called for track days as well, I made the buy. Now that I have had them for some time, I can say a few things about them: they fit well and are extremely comfortable on the bike, there is even a decent feel for the controls through the Lorica, they are incredibly adjustable for boots, and they are very durable. My Vertigo pair has been through the Pacific Northwest's legendarily wet and dirty winters and will still clean up to look almost brand new. The only complaint I have is their off-bike comfort. They do feel like stormtrooper boots and caused me some blisters early in my ownership. I replaced the insole, which virtually eliminated the blister issues, but did not alleviate the stiff feeling when walking around for a while. Even with this one demerit, I highly recommend the Sidi Vertigos for any sport-minded rider, especially those who spend plenty of time on a track!