This pattern was inspired by http://www.knitty.com/ISSUEspring03/PATTbob.html. The big difference is that the pattern is knitted in the round from the top down. Two size 7 circular needles (or different lengths) and 12 oz of worsted weight yarn are used. A set of size 7 double pointed needles (or a 16" long size 7 circular needle) and a crochet hook (optional) will also be needed. (gauge: 4 st/inch, 6 rows/inch)
Changes for doubleknit (2-ply) yarn are in brackets. (size 5 needles, gauge: 5.5 st/inch, 7.5 rows/inch)
Neck ribbing: Using a 16" or 24" circular needle, cast on 100  stitches, using chain cast on. Join. Work patt (k3p2) around for 4  rows. On last row, put markers before 1st, after 18th, after 50th, and after 68th stitch. Stop at the fifth stitch before the first marker. Check that the ribbing is not twisted and that there are 100  stitches.