The measurements for the finished sweater are listed on the front page of the pattern

Bust circumference: 50 (53) 55 (58) 61 (63) 66 (66) 71 (74) 76 (79) 84 cm [19¾ (20¾) 21¾ (22¾) 24 (24¾) 26 (26) 28 (29¼) 30 (31) 33 inches]

M1LL on the WS:

If you/the recipient measures 56 cm [22 inches] around the chest

Backaward Loop Method:

September Jakke Íslenska The measurements for the finishedThe September Jacket is worked from the top down in brioche stitch with one strand of Sunday and two strands of Tynn Silk Mohair held together. First the back is worked back and forth, then the right and left shoulder. Then these three sections are joined to form the body, which is worked back and forth in brioche stitch. Stitches for the sleeves are picked up and knitted from the armholes and the sleeves are worked down from there. At the end, rib