Boot Sandals.

[ZenOps]

http://www.cbc.ca/news/canada/calgary/cowboy-boot-sandal-founder-pitches-his-unique-footwear-1.3120647

No words..

[Tik-Tok]

But do they come in white, to match all the hats?

[lilmira]

Looks like the result of cow explosion.

[btimbit]

https://pbs.twimg.com/media/A152H8-CAAAsrBF.jpg