Tour de Sock has yarn company sponsors. They supply prizes and they supply discount codes to players. You get extra points for using sponsor yarns in your entries, too. I decided that it was my duty to buy some sponsor yarn. Don't look at me like that, I had a discount code! They both came from Invictus Yarns.
This is Timid. It's similar to another Invictus yarn I've already got. I bought it because it's a 460 yard skein. I'm paranoid about not having enough yarn for my Tour de Socks.
This is Glory. Once in a while I want a red/white/blue yarn. Usually the red and blue are too bright for my taste. I really like the blue shadings and that the red doesn't scream RED.