Locker
you really don't have that much books so I think a backpack is best (people might kick your roller backpack in line)
Pillow, Purse, Pack (Backpack), Parrot, Printer, PinPlasticinePencilsPogo stick
Hiking boots, backpack, walking stick, sunglasses, Snowy River hat,
The backpack might contain earphones for the iPhone. It also could include eyeglasses and energy bars.
Usually in trees. I've never seen a crow nest on the ground or in my backpack, so... But they might make them in big bushes. Sorry about the backpack part.
Backpacks are very handy for caring everything from books to supplies. One might require a waterproof backpack when hiking in the mountains or in a humid climate.
Letters that you can sew on to a backpack are called patches. You can find them at many craft stores, such as JoAnns or Michaels. You can also buy iron on patches, which might be easier to attach.
Backpack
they are about the same. it really depends on the type of backpack or parachute backpack you are talking about.
Mybe the materials on which they use to make a backpack
A vacuum company may be able to provide you with information on which stores they supply with backpack vacuums, or sell you one directly. Major hardware stores such as Home Depot might carry these as well.
You can find backpack repair parts at outdoor retailers, specialty backpack stores, or online websites that sell backpack accessories.