4.2 oz., 100% combed and ringspun Cotton, 32 singles. Athletic Heather and Black Heather is 90% airlume combed and ringspun Cotton, 10% Polyester. Dark Grey Heather is 52% airlume combed and ringspun Cotton, 48% Polyester. triblend colors are 3.8 oz., 50% Polyester, 25% airlume combed and ringspun Cotton, 25% Rayon, 40 singles. 4.2 oz., 100% combed and ringspun Cotton. 30 singles. Athletic Heather is 90/10. Dark Grey Heather is 52% combed and ringspun Cotton, 48% Polyester. Triblend - 3.4 oz., 50% Polyester, 25% combed ringspun Cotton, 25% Rayon, 40 singles. 32 singles. 4.2 oz., 100% airlume combed and ringspun Cotton. Relaxed fit. Sideseamed. Tear away label. Pre-shrunk.