4.2 oz., 100% combed ringspun cotton; 30 singles ; Ash is 99/1; ; Athletic Heather 90/10; all other Heathers 52% combed ringspun cotton, 48% poly; Marble colors are 91% polyester, 9% combed ringspun cotton, 30 singles, 4 oz.; Neon colors are 52% combed ringspun cotton, 48% polyester, 40 singles, 3.6 oz.; Slub – 50% poly, 37.5% combed ringspun cotton, 12.5% rayon, 30 singles, 3.8 oz.; Black Mineral Wash is 52% combed ringspun cotton 48% poly, 30 singles, 4.2 oz.; sideseamed; shoulder taping; unisex sizing; retail fit;