There is also a worsted weight version of this pattern.  It calls for 2 skeins of Cascade 220 and a set of size #3 dpns.

(from the book) "These classic unisex socks highlight the beauty of both luxury and traditional yarns.  The flattering lines of vertical rib ensure a snug fit, for socks that feel as good as they look.  You can knit them in sport or worsted weight yarns.  Either version will let you put your best foot forward!"