"Been wearing these daily at work for several weeks. I'm on my feet most of the day on a concrete floor. These shoes are comfortable all day long even on the concrete. I've found that all NB shoes run a bit short and narrow so I would order at least a half size up and don't be afraid of the 4E width if your feet are on the wide side. Overall I'm happy with this purchase. It's what I was looking for in terms of comfort for the conditions I work in."