Love this shoe
Sidi doesn't mess around with their shoes and this is no exception. The upper is solid and has very little to no stretch in it. I usually wear a 42 in euro sizing and had to go with the 42.5 in this shoe do to width. It isn't narrow, but my foot is wide, but not quite wide enough to go with the wide version of the shoe. Keeping the lower two Velcro closures loose while cranking down on the top click buckle provides plenty of comfort while maintaining the great stability. The composite carbon sole is stiff and ready to grind. I've been very impressed with this shoe over the course of the first 100 miles.