CFOA Football Referee Shirt Short Sleeve. Approved for use in 2014. The new Colorado shirt is distinct in that it has 2-1/4 inch black and white stripes with a wide black panel under the arm. The American flag (1-3/4” x 3-1/4”) will be dye-sublimated above the breast pocket. Made with 100% moisture management Elite fabric. Made in the USA.