Size Pit to Pit Full Length (from top of collar)
S
21”
26”
M
21.5”
26.5”
L 22.5” 27”
XL 23.5” 27.5”
XXL 24” 28”

 

A variance of +/- 0.5" is within tolerance

These measurements are taken with the garment laying flat. To get a circumference measurement, double the number.