Why Kanye West's $1M Yeezys may become the world's most expensive sneaker

Now you can walk a mile in Kanye West's shoes.

The first pair of Yeezys he ever wore is going up for auction.

They are expected to fetch $1 million, which would make them the most expensive shoes ever sold.

Sotheby's says the value comes from the brand's cultural impact.

Kanye sported the sneakers at the 2008 Grammy Awards.