Shoes…
 

Change your socks often. Start a regime of walking at least 1 hour a day, over undulating terrain, if possible. That will help you more than brand name.

For years I used New Balance mid-tops for Steadicam and hand-held work (little bit of ankle support is good) but of late I have been using Nike's. I do agree that Clark makes a comfy but ugly shoe (and their sandals are great) but not the best for active shooting.

I recommend hiking socks that are thin all around except for the heel and the ball of the foot (with wicking ability), and lightweight hiking boots (I use Nike) that provide ankle support.

And if you have to dress formally...Rockports.

SAS are really good too.