Shirts are typically printed on Gildan 2000 Ultra Cotton or similar for size comparison.
BODY LENGTH
S 26.63
M 28
L 29.38
XL 30.75
2XL 31.63
3XL 32.5
4XL 33.5
BODY WIDTH
S 17.5
M 19.5
L 21.25
XL 23
2XL 25
3XL 27
4XL 29
SLEEVE LENGTH
S 8
M 8.25
L 9
XL 9.5
2XL 9.75
3XL 9.75
4XL 10