This pattern has the Cinderella yarn knitted into the garment. Normally this yarn is knitted on 6mm needles, but it works in well with the 8ply yarn when knitted on 4mm needles. Cinderella is available from Spotlight stores in Australia. It could be substituted for another man-made yarn that could be knitted on 4mm needles. See details of this yarn on my website - tips ‘special yarn requirements’