What is your one shoe to rule them all?

I am wondering what is your king shoe when it comes to onebag travel that involves a lot of walking (eg exploring a city), some hiking, and even going out here and there.

Would any of the Adidas Terrex series work, for example?

Ideally I'd depart with one pair of shoes only, on my feet, and use the bag space for other things. I'm sure I'm not the only one!