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.