Jackets Vests and Knitwear

How to take chest measurements.
Standing naturally, measure around the fullest part of the chest and shoulder, under the arms with your arms at resting position.
Jackets/Knitwear XS S M L XL 2XL 3XL 4XL 5XL 6XL
To fit chest size (cm) 87 92 97 102 107 112 117 122 127 132
To fit chest size (inches) 34 36 38 40 42 44 46 48 50 52