The Zipper Jacket is worked from the top down. First the back yoke is worked, then the right and left front yoke. Before the body is finished, double-knitted front edges are worked on the fronts of the yoke and the stitches from these are joined with the body. The double-knitted front edges look like stockinette stitch from both the right side and wrong side. The jacket is closed down at the front with a zipper and a facing is worked for the zipper before it is sewn in.
The sleeves are worked in the round from stitches that are picked up and knitted along the armholes. At the end, the afterthought pockets are worked from stitches that are picked up along the fronts of the jacket.
Begin by working a swatch to determine which needle size you need to achieve the correct gauge.

Size guide
The Zipper Jacket is designed to have approx. 35 cm [13¾ inches] of positive ease, meaning it is designed to be 35 cm [13¾ inches] larger in circumference than your bust measurement. The sizes XS (S) M (L) XL (2XL) 3XL (4XL) 5XL are designed to fit a bust circumference of 80-85 (85-90) 90-95 (95-100) 100-110 (110-120) 120-130 (130-140) 140-150 cm [31½-33½ (33½-35½) 35½-37½ (37½-39½) 39½-43¼ (43¼-47¼) 47¼-51¼ (51¼-55) 55-59 inches].
The measurements for the finished garment are on the front page of the pattern. Before beginning your project, measure yourself to determine which size to knit. For example, if you measure 88 cm [34¾ inches] around your bust (or around the widest part of your upper body) you should knit a size S. A size S sweater has a bust circumference of 123 cm [48½ inches] which in the given example would give you 35 cm [13¾ inches] of positive ease.
The model in the photos is wearing a size XS and has a bust circumference of 82 cm [32¼ inches] and is 164 cm [approx. 5 feet 4 inches] tall.

Sizes:
XS (S) M (L) XL (2XL) 3XL (4XL) 5XL

Bust circumference:
116 (123) 129 (133) 140 (152) 160 (172) 180 cm [45¾ (48½) 50¾ (52¼) 55 (59¾) 63 (67¾) 71 inches]

Length: 75 (76) 77 (78) 79 (80) 81 (82) 83 cm [29½ (30) 30¼ (30¾) 31 (31½) 32 (32¼) 32¾ inches]

Gauge:
15 sts x 22 rows = 10 x 10 cm [4 x 4 inches] in stockinette stitch on 5 mm [US8] needles after wash and blocking

Needles:
Circular needles: 5 mm [US8] /40, 60 and 80 or 100 cm [16, 24 and 32 or 40 inches], 4.5 mm [US7] / 80 or 100 cm [32 or 40 inches], and 3.5 mm [US4] / 80 cm [32 inches]
Double-pointed needles: 3.5 mm [US4] and 5 mm [US8] (unless the Magic Loop technique is used)

Materials:
500 (600) 700 (800) 800 (900) 900 (1000) 1000 g Håndværksgarn by Hjelholts Uldspinderi (100 g = 200 m [219 yds]) (pictured in color mellemgrå) held together with 125 (150) 175 (175) 175 (175) 200 (200) 225 g Silk Mohair by Isager (pictured in color 3S) (25 g = 210 m [232 yds]) or Tynn Silk Mohair by Sandnes Garn (25 g = 212 m [232 yds]) or Soft Silk Mohair by Knitting for Olive (25 g = 212 m [232 yds]). 6 mm open-end zipper, 45 cm [17¾ inches].

Difficulty: ★ ★ ★ ★ ★(5 out of 5)

See the classification of difficulty here.

The grey Zipper Jacket is knitted in Håndværksgarn by Hjelholts Uldspinderi in the color Mellemgrå [03] held together with Silk Mohair by Isager in the color 3S.