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Sylvie P is worked seamlessly from the top down.
Both the back and the front are worked in Stockinette stitch in a sportive stripe pattern, with an additional “faux” seam that runs down at the center of the back. Knitting starts with the cast-on of the shoulders for the back.
Once the short row shaped shoulder slope is done, the back is worked flat to underarm. Shoulder stitches are picked up to work the fronts to the same length.
At underarm both fronts and back are joined to work the body in one piece top down back and forth to the bottom hem.
Then the button bands and shawl collar are worked.

You can make this a fun Cardover/Pulligan (= a pullover that looks like a cardigan ;)) by sewing the buttons through both layers of the button bands or work buttonholes to make it a “real” cardigan.

Last the sleeve stitches are picked up around the arm openings to work the sleeves in Stockinette stitch top down in rounds to the cuffs.

modifications/adjustments
The body and the sleeves can be lengthened or shortened by working more or less rows/rounds before starting the ribbing. Size can be adjusted by working widthwise from the size you need/want for your bust/chest, and lengthwise from the size you need/want for your upper arms. Upper arm circumference is determined by the armhole length plus underarm stitches - work more or less rows for both fronts and back (follow instructions for a smaller/bigger size) to adjust armhole length.

Pockets could be added to your liking. The pattern doesn’t include instructions for pockets, but provides a link to a great tutorial.

Be aware that the amount of yarn needed will change with each alteration.

Yarn
POLO & CO
MC: Masgot fine 437 yds (400 m)/100g, shown in color Silex
CC: Ango 437 yds (400 m)/100g, shown in color Cacao
Note: Both yarns are more on the “rustic and lofty” side and therefore knit up like sport weight yarns.

approximately
MC:
897 (996, 1068, 1160, 1232)(1316, 1350, 1375, 1404) yds
820 (910, 976, 1060, 1126)(1203, 1234, 1257, 1283) m
CC:
372 (405, 442, 468, 493)(533, 557, 583, 609) yds
340 (370, 404, 428, 451)(487, 509, 533, 557) m

Needles
US 2 1/2 (3 mm) 32” (80 cm) circular needle and DPNs (or longer circular needle for magic loop) for button bands, body, and sleeve ribbing.
US 4 (3.5 mm) 32” (80 cm) circular needle and DPNs (or longer circular needle for magic loop) for body and sleeves.

Gauge
22 sts x 33 rows = 4” (10 cm) square in Stockinette stitch on larger needle after blocking.

Sizes
1 (2, 3, 4, 5)(6, 7, 8, 9)
finished bust/chest circumference (based on back width at underarm doubled):
42 (45.75, 50.25, 53, 56)(60.5, 63.25, 66.25, 69)”/
105.5 (114.5, 125.5, 133, 140)(151, 158, 165.5, 173) cm

Suggested ease: 9 - 12” (23 – 30.5 cm)
Sample is worn with approximately 11” (28 cm) positive ease at bust (actual bust circ 31” + 11” positive ease = 42” = size 1).

Materials
Stitch holders or waste yarn, 4 stitch markers, row counter (optional), tapestry needle, blocking tools, 4 removable stitch markers, 4 buttons (diameter: 1” /2.5 cm).