I have been wearing NB walking shoes for nearly twenty years. They fit my wide, flat, bunioned feet very well. The 606s offer very good support, although I do remove the original footbed and substitute a Spenco or Sole support. At 61 years and after lots of hiking, walking & aerobics, I have lost most of the fat cushion over the ball of my foot, making it painful to walk. Add in Tailor's bunions on the outside of my foot and I can hardly do two miles anymore. But these shoes are very comfortable for me. They offer excellent arch support, a medium-wide toebox and folks, these things are light as a feather! You barely notice you have them on! They offer good traction & breathability, fit true to size and maybe a tad wider than medium width. These are my new favorite shoe. Good price at Amazon & with Prime I got free shipping. Highly recommend.