Bella Ladies' Cotton/Polyester T-Shirt 6650 100% Cotton 3.6 oz., 52/48 airlume combed and ringspun cotton/polyester, 40 singles. Marbles are 3.5 oz., 91/9 polyester/airlume combed and ringspun cotton, 40 singles. Neons are 3.6 oz., 52/48 airlume combed and ringspun cotton/polyester, 40 singles. Shoulder-to-shoulder taping.