Bella + Canvas 8838 Women's Slouchy Tank 65% polyester 35% cotton Imported 3.7 oz., 65/35 polyester/viscose, 32 singles. Athletic Heather is 52/48 polyester/viscose. Black Heather is 80/20 viscose/polyester. Triblends are 3.8 oz., 50/25/25 polyester/airlume combed and ringspun cotton/rayon, 40 singles .