How do I gauge whether the FREE size will fit me?

36.5cm is the chest width of this size^[2]. Generally, rather than directly matching chest width to your body circumference, it is a measurement compared by laying a well-fitting cardigan flat and measuring the width across the same area. Comparing the shoulder of 30.5cm and sleeve of 64.5cm against the corresponding parts of the comparison garment also makes it easier to judge overall size than looking at the chest measurement alone^[3]. If you also note the total length of 51cm, hem of 36cm, and armhole of 19cm, your baseline for comparing length and width becomes clearer^[4]. Generally, because measurements for knitwear can vary depending on how it is laid out or pulled, it is better to measure the comparison garment under the same conditions without stretching it.