Combat Shirt AC Sizing Chart 
NOTE: This shirt has a tighter torso fit than G3. Order one size up for a looser torso fit.
Combat Shirt AC Size Fits Chest Fits Height
XS Short 29 to 33 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
SM Short 33 to 37 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
MD Short 37 to 41 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
LG Short 41 to 45 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
XL Short 45 to 49 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
2X Short 49 to 53 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78
3X Short 53 to 57 64 to 68
  Regular   68 to 72
  Long   72 to 76
  XLong   76 to 78