This pattern is for BOTH the sleeveless ribbed shell and the ponchette over top.
The shell is worked entirely one piece, circularly, separated at armholes, then rejoined at shoulder and neck.
The pochette is worked cuff to cuff, back and forth in rows. The central St st area is very loosely knit and slightly transparent.
The yarn specified is recommended in order to achieve the same effect, once blocked.

PATTERN DETAILS
The shell is very stretchy and clingy, the ponchette is very loose fitting.
PDF has 4 pages with a color front cover.
Metric and imperial measurements, schematic, written cable pattern.
Rated: easy
Skills required: Knit purl rib, work in rows and circularly, follow cable instructions, increase, decrease, blocking.
Materials required: shell: 3 (3, 3, 4) skeins, ponchette: 2 (3) skeins of Mirasol SULKA LEGATO, each 50 g/ 1 3/4 oz, 250 m/ 273 yds (60% merino wool, 20% alpaca, 20% silk).
Needles: pair of 3mm/ US 2 and 6mm/ US 10, circular 3mm/ US 2and 4mm/ US 6
Cable needle, large stitch holder, 2, stitch markers, blocking pins and board, yarn needle.