How to Crochet a Stylish Khaki Sweater

You’ll Need
12 (13) 14 (15) skeins of khaki yarn (90% wool, 10% viscose; 100m/50g);
Crochet hooks 3.5 and 5.5.
Size
S (M) L (XL).
Used Patterns
Main pattern: * 1 front post double crochet, 1 back post double crochet*. Replace stitches in every row.
Stitches Control
14.5 sts x 10 rows = 10 x 10 cm.
Instructions
Make 145 (151) 157 (163) chain stitches, turn with the help of 2 chain stitch increases and work with double crochets to the end of the row, make 1st double crochet from the 3rd chain stitch increase, turn with the help of 2 chain stitch increases, and 1 half double crochet. Continue work with the main pattern to the last 2 stitches of the row: 1 double crochet and 2 chain stitches. Make 1 half double crochet from each of these 2 stitches. Repeat this row until the length of work is 54 (55) 56 (57) cm.
Divide stitches for front and back in the next row and make new stitches for arm-holes in the following way: 36 (38) 40 (42) sts, make 42 (44) 46 (48) chain stitches, crochet the next 73 (75) 77 (79) sts, make 42 (44) 26 (48) chain stitches, crochet the last 36 (38) 40 (42) sts = total of 229 (239) 249 (259) sts.
Crochet the next 1 (1) 2 (2) rows straight. Work with double crochets in the 1st row on set-up chain, continue with the main pattern on relief double crochets. Mark the first and the last chain stitch on every arm-hole with contrast yarn.
Make raglan decreases in the next row at contrast marks: crochet till the last stitch before the contrast yarn, make the next 3 crochets together in the same way, as 2 sts from both sides from contrast yarn. Repeat these decreases at all contrast marks. Crochet the next 1 (1) 1 (2) rows straight without decreases. Make a raglan decrease in the next row at all contrast marks.
Make raglan decreases in every row in the next 15 (16) 17 (18) rows = total of 93 (95) 97 (99) sts. Change to crochet hook 3.5 and make 1 row of single crochets. Tighten the yarn.