I had to start looking for a replacement for my Sonia clogs that I had been wearing to work for over 10 years as they were beginning to look a little too beat up for office wear so I decided to try the Pro XP due to it having more cushioning as I sometimes have to be on my feet all day and even though the Sonia is comfortable for up to five hours, I am hoping these new ones can take me to longer lengths.  I love the fit and look of these and only time will tell if I can take 5+ hours on my feet in them.  So far I totally love them and recommend any Dansko to anyone needing comfortable shoes.  I have diabetes so it's imperative that I have shoes that do not rub/hurt in any fashion and I've never been disappointed in any Dansko I've purchased.  This is my third pair and will not be my last.