Taken from Knit Simple - 2011 Holiday: "Stitched sideways from cast-on to bind-off in a zigzag lace pattern, this vest is fitted in the back and drapes in the front."
This pattern is in Knit Simple - 2011 Holiday, page 82.
Size US 7-16" circs, US 7-24" circs and US 8-24" circs (or size needed to obtain gauge) are required but not included.
Finished Measurements Across Back: 13 (16, 19, 22)".