I have worn ASICS for 25 years, and this is the first pair that is unwelcome.  I wear a size 9 shoe, so I buy 9.5 size  medium width athletic shoes to provide more room.  This 9.5 shoe must be a size 9 and perhaps a  narrow width---even though it says 9.5 medium--- because the toe box is too small.  I felt something was wrong the first time I wore them and should have returned them  immediately, but I thought they would stretch to fit my foot.  They didn't!

I walk  5 miles every day.  I broke these in over a one-week period, but I probably won't wear them again.  I'll still buy Asics, but I'll be very careful about size when I open the box!