Bernat Baby Coordinates Chunky Yarn. A favorite baby yarn available in a chunky weight; ideal for quick knit and crochet baby blankets. Easy care; wash and wear. Weight category: 5. Multi-colored: 85% acrylic; 12.8% Viscose; 1.5% Nylon; 4.2oz/120g; 244 yds/223m. Gauge: knit: 15stx20r=4in/10cm on size U.S.10/6mm needles; crochet: 12scx13r=4in/10cm on J10/6mm hook. Care: Machine wash cold; dry low heat; do not bleach; do not iron; do not dry clean. Imported.