I have a handful of miles on a pair of Crispi Guide boots. So far so good. Heavier and stiffer than the Salomons, yet comfortable. No hot spots or concerns. Seem to breath well as I walked through a local battlefield yesterday with temps over 70 and a 30-40 lb pack with no problems. The jury will be out until I can try them in the cold as that is why I would use them in place of the Salomons.