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
Product Dimensions(in inches)
AGO SIZE
S
M
L
XL
2XL
3XL
4XL
5XL
6XL
Vest Width
24.5
25.5
26.75
28
29.25
30.5
31.75
33
34.25
Vest Back Length
26.5
26.5
27
27.25
27.5
27.75
28
28.25
28.5
Product dimensions are measured from the garment laying flat Vest width is measured from side seam to side seam approximately 2" below the armpit Vest back length is measured from the bottom on the collar to the bottom of the vest