Armpit to armpit measures 20".

Length from collar to hem measures 27".

(The tag says XL but we're listing it as a Men's Size Large based on the measurements. )

50% cotton.  50% polyester. 

In good pre-owned condition,  especially considering it's age.  No noticeable flaws or defects.  Stored in a smoke and pet free environment.  Will ship out very shortly after purchase.  Please see pictures for greater detail.