I couldn't find the ball band, and finally had to go to the yarn store to find out what kind of wool these are made of (ok, ok, I could have looked it up on the web, but there was a warehouse sale at my lys, soooo... )
Meilenweit Mega Boots by Lana Grossa, # 713. I love this yarn because not only does it slowly morph from one colour to another, but it's plied with two colours: one that is consistent throughout (in this case, green), and another strand that changes. It creates a colour depth that is hard to photograph. You'll just have to take my word for it, this stuff is beeeyooootifuuul.
Because they're knit from one ball, it's hard to have them start at the same point in the colourway without wasting a lot of yarn. So you end up with socks that are fraternal twins rather than identical. I think it adds to their charm, but some people might go crazy trying to "match" them.
In other knitting news, I've finally reached the lacy border section on the Icarus shawl, which means that there is light at the end of this dark, black, never-ending lace weight tunnel. I can't wait to put this baby on the stretcher for a bit of blocking torture, medieval style.