4.3 oz.,100% preshrunk combed ringspun cotton, 30 singles,Heather Grey is 90/10 ringspun cotton/polyester,Semi-fitted,Double-needle stitching on neck, sleeves and bottom hem,Shoulder-to-shoulder taping,Seamed�collar,Side seams,Oeko-Tex� Standard 100 Certified,TearAway� label�