Pay attention :
In order to have enough mobility 
Size S  fits to a person with Chest circumference 90 - 100 cm
Size m fits to a person with Chest circumference 101 - 110 cm
Size L fits to a person with Chest circumference 111-120 cm
Size XL fits to a person with Chest circumference 121-130 cm 
Size M
Chest circumference 120cm - length 50 cm - sleeve 45 cm 
Size L
Chest circumference 130cm - length 55 cm - sleeve 45cm 
Size XL
Chest circumference 140cm - length 60 - cm sleeve 45