I wear a 4E width. I recently had surgery on my Achilles tendon and a ligament in my foot. This is the only shoe I've ever owned that was comfortable the minute I put it on. I did not need to "break it in"  This is my second pair and I bought it for wearing at work. I am a nurse who works 12 hour shifts.  My feet feel less tired and more supported.  Next month  I am buying another pair to replace the ones I wear at home. On the negative side I do not like the color at all. Wish it had more color options.