Not sure if this has been posted, but here's what I got for measurements in inches for LE Canvas/Heritage shirts in a product inquiry.
S - 42.5 chest, 39.5 waist, 29.5 length, 33.75 sleeve
M - 45.5 chest, 42.5 waist, 30 length, 34.75 sleeve
L - 49.5 chest, 46.5 waist, 30.5 length, 35.75 sleeve
XL - 53.5 chest, 50.5 waist, 31 length, 36.75 sleeve
Was really hoping that the L would be more in the 47 or 48 chest and 42 to 44 waist range, since the sleeve and shirt length looks good for me. I don't know why it is a 3 inch jump from S to M for the chest and waist, and then a 4 inch jump for M to L.