T-Shirt sizes: S (18" body width; 28" body length; 7.25" sleeve top), M (20" body width; 29" body length; 7.75" sleeve top), L (22" body width; 30" body length; 8.25" sleeve top), XL (24" body width; 31" body length; 8.75" sleeve top), XXL (26" body width; 32" body length; 9.25" sleeve top). Cap is one size fits most. Machine wash cold with like colors, only non-chlorine bleach when needed, tumble dry low, do not iron if decorated.