Generally the heavier the fabric, the more durable your garment will be during washing and wearing. Our demure cloth features a twill weave, which is the most durable type of weave available in the market. All galaxy cloth fabrics are the most Opaque. List of fabrics and their weight Eco cloth 2.6 oz/sq yd Memory Cloth 3.0 oz/sq yd Spectrum cloth 3.2 oz/sq yd Demure Cloth 4.1 oz/sq yd Galaxy Cloth 4.5 oz/sq yd