I assume this has something to do with the group sale featured today (and other days I've noticed), but the footer doesn't match the sale. What's strange is that this isn't the shirt I saw on my home PC when I decided to post about it earlier.
I'm sure you can just scroll down, but here's what I'm seeing currently.
It's strange since even the tooltip matches the image, but clicking goes to the main shirt.woot page. I imagine this was not intended, but figured I'd call it out just in case.