Bella Canvas 3021 - Jersey Pocket T-Shirt 100% Cotton 4.2 oz., 100% airlume combed and ringspun cotton, 32 singles. Athletic Heather is 90/10 airlume combed and ringspun cotton/polyester. Alternate Heathers are 52/48 airlume combed and ringspun cotton/polyester. Side seams, retail fit.