NOTE: This pattern is written in American English. All measurements in charts are in cm. For conversion from inches to cm - click here.
There are different terms for crocheting in American and British English. If this pattern includes crochet, click for "crochet terms" here.
For this pattern in British English, please click here.
Garter st, back and forth on needle: K all rows.
Garter st, in the round: K 1 round, P 1 round.
Knitting tip: When working front pieces, work 2 rows on front bands only on approx every 5 cm  (garter st tends to tighten, so do this to make front bands fit the jacket).
Pattern: See diagram M.1. Diagram shows the pattern from the RS.
Worked back and forth on needle.
Cast on 100-108-116-128-144-160 sts (includes 1 edge st each side) on needle size 3 mm [US 2or3] with Alpaca. Work 8 rows garter st see above, and continue in M.1 with 1 edge st each side. Note: beg and finish M.1 with 2 K sts to make pattern fit at the side. Continue in pattern like this until finished measurements. Remember the knitting gauge! When piece measures 8 cm [3 1/8] dec 2 sts each side, and repeat the dec on every 5 cm  a total of 3 times = 88-96-104-116-132-148 sts. When piece measures 24 cm [9½] inc 2 sts each side, and repeat the inc on every 6-6-7-7-8-8 cm [2 3/8-2 3/8-2Ύ-2Ύ-3 1/8-3 1/8] a total of 3 times = 100-108-116-128-144-160 sts. When piece measures 39-40-41-42-43-44 cm [15Ό-15Ύ-16 1/8-16½-17-17Ό] bind off for armhole each side at the beg of every row: 5 sts 1 time, 4 sts 0-1-1-1-2-4 times and 2 sts 1-1-2-4-5-5 times = 86-86-90-94-98-98 sts. When piece measures 56-58-60-62-64-66 cm [22-22Ύ-23 5/8-24 3/8-25Ό-26] bind off the middle 22-22-26-30-32-32 sts for neck and dec 1 st on neckline on next row = 31-31-31-31-32-32 sts left on each shoulder. Bind off when piece measures 58-60-62-64-66-68 cm [22Ύ-23 5/8-24 3/8-25Ό-26-26Ύ].
Right front piece:
Cast on 63-67-71-79-87-95 sts (includes 1 edge st at side and 14 front band sts towards mid front) on needle size 3 mm [US 2or3] with Alpaca. Work 8 rows garter st and continue as follows from mid front: 14 garter sts (= front band), M.1 on the next 48-52-56-64-72-80 sts, 1 edge st. Read Knitting tip! When piece measures 8 cm [3 1/8] dec at the side as described for back piece = 57-61-65-73-81-89 sts.
Read all of the following section before continuing!
When piece measures 24 cm [9½] inc at the side as described for back piece. At the same time when piece measures 33-35-36-38-39-41 cm [13-13Ύ-14Ό-15-15Ό-16 1/8] inc 1 st in the outermost st towards mid front on every 2.5 cm [7/8] a total of 10 times. Work inc sts in garter st. At the same time when piece measures 34-36-37-39-40-42 cm [13 3/8-14Ό-14½-15Ό-15 3/7-16½] work 1 extra st into front band (i.e. no of sts remain the same, but no of garter sts inc and no of sts in pattern dec) on every 2-2-1.5-1.5-1.5-1.5 cm [3/4-3/4-½-½-½-½] a total of 11-11-13-17-18-18 times. At the same time when piece measures 39-40-41-42-43-44 cm [15Ό-15Ύ-16 1/8-16½-17-17Ό] bind off for armhole at side as described for back piece. After all dec and inc are complete there are 66-66-68-72-74-74 sts on row (35-35-37-41-42-42 garter sts for collar and 31-31-31-31-32-32 sts in pattern on shoulder). When piece measures 58-60-62-64-66-68 cm [22Ύ-23 5/8-24 3/8-25Ό-26-26Ύ] bind off the 31-31-31-31-32-32 shoulder sts and continue on the 35-35-37-41-42-42 sts for collar in garter st as follows: * work 2 rows on all sts, work 2 rows on the 18-18-19-20-21-21 sts towards mid front only *, repeat from *-* until collar measures 7-7-8-8.5-9-9 cm [2Ύ-2Ύ-3 1/8-3Ό-3½-3½] (measured on the shorter side) from shoulder. Bind off.
Left front piece:
Like right front piece, but mirrored.
Worked in the round on double pointed needles. Cast on 48-48-52-52-56-60 sts on needles size 3 mm [US 2or3] in Alpaca. Insert a marking Thread (MT) at beg of round. Work 16 rounds garter st see above, and then continue in M.1 on all sts. When piece measures 8-8-12-12-8-7 cm [3 1/8-3 1/8-4 Ύ-4Ύ-3 1/8-2Ύ] inc 1 st on each side of MT on every 2.5-2-1.5-1.5-1.5-1.5 cm [7/8-3/4-½-½-½-½] a total of 16-19-21-23-24-25 times = 80-86-94-98-104-110 sts. Incorporate the inc sts in M.1 as you go along. When piece measures 50-49-49-48-47-45 cm [19Ύ-19Ό-19Ό-19-18½-17Ύ] less for the larger sizes because of longer sleeve cap and wider shoulder - bind off 3 sts on both sides of MT and complete piece back and forth on needle. Bind off for sleeve cap each side at the beg of every row: 2 sts 4-4-5-5-6-6 times, 1 st 1-2-2-3-4-7 times, then 2 sts each side until piece measures 56-56-57-57-58-58 cm [22-22-22½-22½-22Ύ-22Ύ], now bind off 3 sts each side 1 time and bind off remaining sts. Sleeve measures approx 57-57-58-58-59-59 cm [22½-22½-22Ύ-22Ύ-23Ό-23Ό].
Sew shoulder seams. Sew side seams inside 1 edge st. Set in sleeves. Sew collar tog mid back and sew to neckline.
Crochet border/ buttonhole loops:
Beg at the bottom on right front piece, work round neckline and down along left front piece. Crochet with crochet hook size 3 mm [C] as follows: 1 sc, * 3 ch, skip approx 1-1.5 cm [3/8-½], 1 sc in next st *, repeat from *-*. At the same time approx 10 to 12 cm [4-4Ύ] from bottom edge on right front piece make 1 buttonhole loop by working 5 ch instead of 3 ch. Make another 2 buttonhole loops on right front piece with approx 8-8-8-9-9-9 cm [3 1/8-3 1/8-3 1/8-3½-3½-3½] between each.
Sew on buttons in the innermost garter st on left front piece.
= K from RS, P from WS
= P from RS, K from WS