Canvas - Polyester/Cotton T-Shirt - 3650 3.6 oz., 52% combed and ringspun cotton, 48% polyester; 40 singles Marble colors are 91% polyester, 9%combed ringspun cotton, 30 singles, 4 oz.; Acid wash colors - 52% combed ringspun cotton, 48% poly, 30 singles, 4.2 oz.; Black Mineral Wash is 52%combed ringspun cotton, 48% poly, 30 singles, 4.2 oz.; Slub - 50% poly, 37.5%combed ringspun cotton, 12.5% rayon, 30 singles, 3.8 oz.; Speckled - 50% poly, 25%combed ringspun cotton, 25% rayon, 30 singles, 3.8 oz. retail fit; sideseamed; unisex sizing