Bella + Canvas - Women's Slouchy Tee - 8816 Polyester-blend 3.7 oz., 65/35 viscose polyester/cotton, 32 singles. Athletic Heather is 52/48 polyester/viscose. Triblends are 3.8 oz., 50/25/25 polyester/airlume combed and ringspun cotton/rayon, 40 singles. Marbles are 3.5 oz., 91/9 polyester/airlume combed and ringspun cotton, 40 singles.