Chest:
Measure under arms around the fullest part of the chest. Be sure to keep tape level across back and comfortably loose.
Waist:
Measure around natural waist with a measuring tape.
American Apparel Men/Unisex T-Shirt Sizing Chart
Size
XXS
XS
S
M
L
XL
2XL
3XL
Chest (Inches)
29-31
30-32
34-36
38-40
42-44
46-48
48-50
50-52
Waist (Inches)
27-29
28-30
30-32
32-33
33-34
36-38
40-42
44-48