S M L XL XXL 3XL 4XL 5XL
1/2 Chest (cm) 51 54 57 60 64 68 72 76
1/2 Chest (inches)
20 21 22.5 23.5 25 26.5 28.5 30
Chest (cm) 102 108 114 120 128 136 144 152
Chest (inches) 40 42.5 45 47 50.5 53.5 56.5 60
Chest to fit (inches) 35-37 37-39 39-41 42-45 45-47.5 48-50 51-53 53-56

 
Tolerance +/- 2cm