Steve MaddenMen's Troopah-c Combat Boot

I walk and run alot at work. The description says there good for that. Will they hold up?

The material of the boots (particularly the black ones) is like suede, or a shiny leather? Thanks

Do these boots side zipper? One picture show inside zipper, one shows no inside zipper. Description does not address zipper.

Some photos seem to show that the inside has a zipper, others no. Which is it?