I am way behind on the Plunge ... and am hoping to make up for lost time soon! These have been kicking around for a while, with just the foot of one left to do. Not sure of the yarn used for the main part of the socks, although the heel, toe and cuff are Kroy 4 ply. Pretty cheery for a vanilla sock ... they will go in the Christmas gift stash (and are #5 on the 52 Pair Plunge, and also count for my June sock for the Sock A Month KAL). It's nice to have them off the needles and in the gift drawer!
Posting more soon!