4.2 oz., 100% Airlume combed and ringspun cotton, 32 singles Athletic Heather & Black Heather are 90/10 airlume combed and ringspun cotton/polyester Heathers & Neons are 3.6 oz., 52/48 airlume combed and ringspun cotton/polyester Unisex sizing Retail fit Side seams Tear-away label