This tee runs smaller in size then most regular t-shirts.   Measurements are below.  First measurement measures the length and the second measurement measures the width.

S- 27" x 18"

M- 28" x 18 1/2"

L- 28" x 19 1/2"

XL- 30" x 22"

XXL- 30 1/2" x 22 1/2"