Yellow Jacket
Back side
WS: k1, $\cdot{\mathfrak{p}}2$ $k2^{*}$ $\mathsf{r e p}^{**}$ to 3 sts before sleeve-opening, p2, k1, turn. RS: P1, k2, $\cdot{\mathfrak{p}}2$ $k2^{*}$ $\mathsf{r e p}^{**}$ to 1 sts before sleeve-opening, p1, turn. Continue as established for26 rows, counted from theBO at the amholeBO themidle 14 st forneck-opening, and finish the shoulder parts, one side at the time.Decrease 3 sts towards the neck-opening every second row, 2 times, untilyou have 9 sts left. Continue until the back side is as high as the fronts left and right side.BO. Sew together the shoulder seams, and weave in loose yarn ends.
Sleeves
Use a crochet hook and pick up sts around the arm hole. Start working at the $^{\prime\prime}2$ st BO" Work on a small circular needle or 5 DPN needle, and pick up about 41 - 42 sts (about 4 sts $=$ inch). Knit in the round. On row 3, start decreasing on the underside of the sleeve. K1, k2 tog, kuntil3 sts before the end of the row, k 2 tog through back loop, k1. Continue this decrease on every fifth row, untilyou have about 31 - 32 sts left. Work a total of 44 rows counted from the beginning of the sleeve. (lf you want a longer sleeve, work a few more rows, now.) Change to Us 2 needles $(3\,\mathsf{m m})$ and purl 2 rows. Decrease 5 sts (p2 tog $\times\,5$ ) on next row, evenly spread. Purl one more row, and BO.
Neckline
With a crochet hook, pick up about 68 sts (about4 -5 sts $=$ inch). Work 8 rows garter sts with size US2 needle $(3\,\mathsf{m m})$ and BO. Weave in the loose ends and block the jacket. Crochet abbreviations: dc $=$ double crochet, ss slip stitch, ch $=$ chain
Buttons
Use yarn remnants in the colors you prefer. I used a pink Cascade 220 Wool. Row 1: Crochet hook $(3-3.5\;\mathrm{mm})$ .Ch 4 sts and join to a ring. Row 2: Make 7 dc in the ring. Row 3: Keep crocheting around, 1 dc in previous rows dc, but increase 3 dc sts in this row by making 2 dc in 1 three times. Row 4: Make 1 dc in every sts.
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Row 5: Keep crocheting around, 1 dc in previous rows dc, but decrease 3 dc sts in this row by making skipping 1 dc thre times. Row 6: Make 1 dc in the st you skipped (3) from last rnd. Leave a long tail, and sew the openings shut, sew straight through the button, back and forwards, again and again, forming it to a firm small ball. Make two more and attach them to the jacket.
Flowers
Row 1: Crochet hook $(3-3.5\,\mathsf{m m})$ .Ch 4 sts and join to a ring. Row 2: In the ring, \*chain 2 sts, 2 dc and $1\ s s^{*}\,{\mathsf{r e p}}^{**}$ ,4 more times, and pull the yarn end through the loop. Fasten the flower to the back.