From the Knit Rowan website:
Knit this childrens blanket, a design from the Rowan archive originally featured in Classic Babies. Designed by Martin Storey using Baby Merino Silk DK, a luxury machine washable yarn designed specifically for babies (merino superwash wool and tussah silk) this comforting blanket is knitted in squares of garter stitch and is perfect for bedtime cuddles.