Marble from S.R. Kertzer is a yarn created by designer James Brett which was introduced several years ago. This fiber is DK weight which is machine washable and dryable. A variegated yarn, "Marble" is 100% acrylic with marl effect and is versatile enough for ponchos, baby blankets, baby hats, baby cardigans, pullovers, boleros, socks and home décor.