I have a pair of Arizonas. I bought them about a year ago in june. The heel of the left is very worn down and crumbling a little.
For context: i walk around 10 - 20 thousand steps a day in the summer months (dog walking mainly). So effectively have had them for two summers. I thought that they would last for years, but they will have to be replaced next year.
Is this maybe due to heavy use (and/or foot issues)? Or have you had a pair that have survived such use?