Down from $19.90. These are really comfy and much better quality than KMART or Big W in my opinion. At $7.90, it is really a no brainer.
Seems this is the only option you can get online, but there are quite a few more designs in store, including the warmer and more expensive micro fleece one piece Disney holiday collection ($29.90 normally). link
We picked up a few of them from Macquarie Centre, have plenty when we bought it. It should be nationwide, but maybe call your local store first.
sizes are 60/70/80cm.
How old are you?