Men’s size standards – US letter sizes
US Sizes S M L XL XXL XXXL
Length 29 in. 30 in. 31 in. 32 in. 33 in. 33.5 in.
Chest 35-38 in. 38-41 in. 41-44 in. 44-47 in. 47-50 in. 50-53 in.