This tee is pre-shrunk and is 75% ring spun cotton/ 25% polyester.  Measurements are below.  First measurement measures from the neck down to the botton of tee and the second measurement measure the width.

S- 24" x 16"

M- 24" x 18"

L- 26" x 20"

XL- 27" x 21 1/2"

XXL- 28" x 23"