I bought these shoes when my old New Balance tennis shoes finally died.  I have a long, narrow foot and have a lot of fitting problems.  These shoes fit comfortably right out of the box.  The length is true to size and the width is probably on the narrow side...which suits me just fine.  They have excellent arch support and the heel strike is amazingly cushioned.  I walk on a treadmill 3 miles every day and these will be my shoes from now on...