Tri-Mountain 145 Blitz UltraCool Moisture Wicking Antimicrobial Shirt 100% Polyester 6 Oz. S to 4XLT Sizes UltraCool and antimicrobial technology Contrast panels along shoulders and sides Rib collar Three-button placket Square bottom and open cuffs Heat seal label for ultimate comfort Blitz Tri mountain Performance 27 Colors