Asian size may be 1-2 size smaller than US or EU; Usually buying one size up will be OK, please view the size chart image (Your Chest Size )before ordering.
Size S, Height 61-63 inch, Weight 99-110 lbs
Size M, Height 63-65 inch, Weight 110-121 lbs
Size L, Height 65-67 inch, Weight 121-132 lbs
Size XL, Height 67-69 inch, Weight 132-143 lbs
Size XXL, Height 67-71 inch, Weight 143-154 lbs
Size XXXL, Height 69-73 inch, Weight 154-165 lbs