I replaced some 20 year old cycling shoes and cannot believe the advanced technology. At the tail end of my rides, with my old shoes, my feet would invariably go to sleep. I thought that was part of cycling long rides. It is not! These Giro Factor shoes fit my feet like a comfortable soft sock, it is almost like cycling barefoot. They have a little rotation factor on my Speedplay cleats and they feel like they weigh almost nothing. Because of the light feel of the shoe, the upward pull on the pedals seems more effortless than it ever has before. These shoes are worth the money.