Walmart offers the HP Ultra Mobile 16″ Notebook Backpack, model no. WW866AA#ABL, for $ 9.88 plus $ 2.97 for shipping. (Free Site-to-Store shipping is also available.) That’s the lowest total price we could find for a comparable HP backpack by $ 35, although it was $ 2 less last week (since expired). Sales tax is added where applicable. It features two side accessory pockets, adjustable shoulder strap, and support for most laptops with screens up to 16″.