This ladies tank top is made by Bella and is a junior cut.  It is 100% cotton.  Approximate measurements are below.  First measurement measures the from the neck to the bottom of the tank and the second measurement is the width. 

S- 22" x 11 1/2"

M- 24" x 13"

L- 25" 14"

XL- 24" x 15"

XXL- 25" x 15"