Everyone remembers their first love... Mine came in 7th grade in the form of a pair of Huaraches.
Leather Boho Hippie Authentic Mexican Oaxacan Huaraches All Sizes | eBay on Ownza
Makes me think of Cabo.
Your dad / dude probably needs a dress sandal (most men do) and you definitely want to steer him away from anything with Teva or Flip Flop in the name. I love a gent in a Huarche, myself.