It came from an idea Kim Walker had a month or so ago, and is now happening - thanks to the people he works with at Mint Digital.
Tube Socks are being handmade in a small factory in the South of Wales as I write this, and they'll be on sale and on your feet just in time for Christmas.
Until then please feel free to share with all your London, Tube and sock loving friends...more news when the shop launches...