The heel was narrowed by ASICS. They even placed a plastic outside heel plate to keep the heel narrowed. I have been wearing the same size for many.many years, but my feet hurt just to walk in them.

When I called ASICS, they told me that their warranty did not cover fitting. I said that this size has always fit me, but the design change caused the issue. They said that they changed the heel design due to requests from some runners, so even though it is a design change that caused the small fit that it's still a fitting issue, and I need to return the shoe to the seller. From now on, she said, that I will need to first go to an ASICS' store and get a fitting before ordering online; otherwise I need to make sure that the online shoe store takes returns.

The ASICS quality seems to be still there.  That's why I didn't give them one star. But some online dealers are now charging restocking fees, so I'm not sure that I want to go through all of that driving around and fitting.when still might get stuck with a restocking fee. I think I'll look around this time before buying any brand, probably not ASICS after over twenty years.