Red Heart Anne Geddes Baby Yarn, Jam It is the perfect blend of acrylic and nylon to make it super soft and just the right weight for those special baby things Weight category:380and acrylic 20-percent nylon solids: 3 5oz/100g340yds/310m multi: 3oz/85g 290 yd./265m Gauge: knit-22stx3-r=4in/10cm on size US6/4mm hooks and crochet- 17 scx20r=4in/10cm on size G6/4mm hooks