4.5 oz., preshrunk 100% combed ringspun cotton; 30 singles; Heather Grey is 90/10; Heather colors are 60/40; Neon Colors are 65/35; shoulder-to-shoulder tape; features a TearAway label; seamed collar; tubular construction; semi-fitted; double-needle sleeve and bottom hem; Oeko-Tex® Standard 100 Certified;