Adam's Ribs is my favorite stitch pattern that I've ever designed.
I love that it's reversible - exactly the same on both sides.
And it looks like a cable, but is really a simple rib that wanders by way of a few increases and decreases here and there.
Also, the scalloped edges are really pretty.
Finished Size: S (M, L, XL): 143/4 (17, 191/4, 211/2)" across the mid back, and 433/4 (483/4, 531/2, 581/2)" from left edge to right edge. Sweater shown is size M, worn over a 36" bust. Note: this shape is very forgiving; a 0-2" negative ease for the mid-back measurement is recommended. Base size decision on chest measurement. In general, S fits sizes 28-32, M: 33-37, L: 38-41, XL: 42-45
Yarn: Sunday Knits 5-ply Nirvana (92% merino 8% cashmere), Eden (100% merino), Angelic (75% merino 25% angora), or Brigadoon 100% merino tweed): 7 (8, 8, 9) 50-gm skeins (shown in Nirvana charcoal)
Needles: Size 8 US and size 4 US
Notions: Tapestry needle, stitch holder, stitch marker (optional)
Gauge: 24 stitches = 53/4" and 28 rows = 43/4" in pattern stitch.