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 S Chest circumference 110cm 
Armpit circumference 45.cm bicep 40 cm- length 50 cm - sleeve 35 cm 
Size MChest circumference 120cm - 
Armpit circumference 50 cm bicep 45cm- 
length 50 cm - sleeve 38 cm 
Size LChest circumference 130cm 
Armpit circumference 55 cm bicep 50cm- 
- length 55 cm - sleeve 40 cm 
Size XLChest circumference 140cm - length 60 cm - sleeve 45 cm