From an appearance at Dell World in (manifestly) Texas:
More info here. Thanks to reader RJ.
For the record: My wife and I spent a total of nearly four years living in Austin, all of them happily, and she has a graduate degree from UT Austin, whose burnt-orange longhorn symbol is the inspiration for the footwear above. (Talk about higher-ed iconography.)
So: I like Texas, I like UT, and I even like cowboy boots, a very nice dark-brown set of which I had hand-made when we lived there. But those things Clinton is wearing! Whoa.