Batman is an authority on two things:
2. The Night
Given point #2, he knows a thing or two about sunglasses. These custom, hand-painted Batman-themed sunglasses from Etsy seller ketchupize feature Robin, the Joker, Catwoman and the Dark Knight himself. His shop is filled with all kinds of nerdy styles, including the Doctor Who-themed glasses after the break.
Product Page ($40.83)