50% polyester, 25% combed and ring-spun cotton, 25% rayon, 40 single jersey 3.4 oz/yd², 115 g/m². ("MARBLE" made from 91% polyester, 9% combed and ring-spun cotton, 30 single 4.0 oz/yd², 136 g/m².) ("POLY-COTTON" made from 52% combed and ring-spun cotton, 48% polyester, 40 single 3.6 oz/yd², 122 g/m².)