This is how you sign Backpack in American Sign Language.

How to sign

To sign "Backpack" in American Sign Language (ASL), shape both hands into claw-like forms. Then, tap the fingertips against the area below your shoulders twice.

To sign "Backpack" in American Sign Language (ASL), form both hands into the shape of claws. Next, tap your fingertips against the area just below your shoulders two times.