Armpit to Armpit (measured laying flat); 

Small - 16"~, 

Medium - 18" ~,

 Large - 20" ~, 

1XL - 22"~, 

2XL - 24"~, 

3XL - 26"~, 

4XL - 28"~, 

Very Comfortable Fit Zip up Hoodie Sweater. 

Made Of 80% Cotton 20% Polyester