Cheapest price available on this new backpack from Xiaomi. All colours are on sale too - Light Blue, Dark Red, Navy, Orange, Black, Yellow, Green and Pink. It's made from polyester fibre with water repelling fabric and has 3 compartments. Suitable for holding tablets, text books, power banks etc.
Currently selling for $9.59 US ex GST at AliExpress.
AU$ based on Banggoods exchange rate.