These are Prima Vera Socks in Berroco Comfort Sock:
It's a really nice pattern for yarns that are gradually self striping - and simple to remember. A few of my knit buds had bought this yarn when it first came out and I have to admit I wasn't a fan. It's description from their website is "Comfort is an ultra-soft blend of Super Fine Acrylic and Super Fine Nylon and spun into a luxury twist. The yarn is easy care – machine wash and dry – and allergy free.". That last piece is the bit that finally sold me. My doula - who I love dearly - is truly allergic to wool. I usually don't belive people when they say that (for instance, I tricked my MIL by making her 'cotton' socks that were 25% wool, and she loves them). But my doula really is. So I gave it a whirl.
I would knit the pattern again for sure - but I'm still doubtful on the yarn. I knit it to 7.5 sts to the inch, and it still feels pretty floppy to me. Of course, I thinking that the combination of acrylic and nylon will last until the end of time. I should just stop worrying about it. They are pretty, though.