Measure horizontally around the widest part of the chest. If the waist measurement at the navel height is larger than the chest measurement use the waist measurement Talls are for 6'3" and up.
Product Dimensions(in inches)
AGO SIZE
S
M
L
XL
2XL
3XL
4XL
5XL
6XL
Shirt Width
20.5
22.5
24.5
26.5
28.5
30.5
32.5
34.5
36.5
Shirt Back Length
31
31.5
32
32.5
33
33.5
34
34.5
35
Product dimensions are measured from the garment laying flat Shirt width is measured from side seam to side seam approximately 2" below the armpit Shirt back length is measured from the bottom on the collar to the bottom of the shirt