I've been wearing Saucony for 30 years. Prior to this pair I had an Omni ISO. I've never had to order wide, but this shoe is really narrow. I had to return the average width and order a wide one. It still doesn't seem wide enough. If you have a narrow foot, order a medium fit, otherwise order a wide one. If you have wide feet, this shoe will not fit you. This Omni has more cushioning on the inside than the Omni ISO. I do not run. I wear these shoes to work just to go for a walk. She looks really stylish in black. Returning Revain is very easy if you need to exchange them.