Bella + Canvas womens 4.2 oz. Long-Sleeve Crew Neck Jersey T-Shirt (B6500) Cotton 4.2 oz., 100% airlume combed and ringspun cotton, 32 singles. Athletic Heather is 90/10 airlume combed and ringspun cotton/polyester. Deep Heather is 52/48 airlume combed and ringspun cotton/polyester. Side seams, semi-relaxed fit.