From Apple's website...
Forgive us if we're stating the obvious, but here's how it works: Just slide your iPod into the sock to keep it safe and warm. Slide it out to dock or change playlists. It's as easy as... putting on a pair of socks.
And it's as stupid as selling...a set of socks for an iPod. What's next? Little shirts, maybe some beenies for that urban appeal?