4.3 oz./yd2, 30/1's fabric; 100% combed ring-spun cotton; Heather Grey is 90% cotton/ 10% polyester; 100% cotton thread on color White; shoulder-to-shoulder tape and 7/8" seamed collar; rib sleeve cuffs; 1" double-needle bottom hem; double-satin razor label; tubular; made in USA of US and imported materials