65/35 polyester/viscose Athletic Heather is 52/48 polyester/viscose Black Heather is 80/20 viscose/polyester Marbles are 3.5 oz., 91/9 polyester/airlume combed and ringspun cotton, 40 singles Slubs are 4.0 oz., 50/37.5/12.5 polyester/airlume combed and ringspun...