Jersey T-Shirt by Bella + Canvas
UNISEX 
  S M L XL 2XL 3XL
Width (in) 17.48 18.98 20.47 23.46 24.49 25.47
Length (in) 27.99 29.49 30 30.98 30.98 31.5

  

Width
This is the measurement of a t-shirt lying flat on the ground from armpit to armpit - sometimes this gets confused with chest measurement, which goes all the way around your chest, but this one is just the front of the t-shirt.

Length
This is the measurement of the back of the shirt, from top to bottom.