Prior to my current shoes I still have a pair of Treadlite slip on boots which I now wear when mowing the lawns.  The sole is ready to give up and the top of one had been chewed by our dog when she was a puppy but they're still holding together even after probably 10 years of use.  Don't see the need to throw them out quite yet.  These have been and are still very comfortable.

Currently I wear these which look great with any attire and they polish up very well

"Steel Blue Executive", but it seems they're no longer available. These came with a Orthopedic liner.  They're a very sturdy shoe and as a result took nearly a month to properly wear in.  I walk around town in them in my lunch break and they're great.