The boot looks like distressed leather.  It's new leather but it has a waxy coating that makes it look old and distressed well worn.  I used a stiff brush to take off the waxy coating and a clear gloss coat to bring up the shine.  It took a while to get the boots looking the way I like them, still with a mix of different colours in the leather, but with a gloss.

Overall these boots seem quite robust, but I seemed to have received a factory second.  The back harness strap on one boot has some gouges and is a lot thinner in places than it should be. I don't know how long it will last.  Otherwise, they would be worth 5 stars.

These boots are comfortable, but quite heavy, you wouldn't want to try jogging in them.