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Addmotor Addmotor

Addmotor Bicycle Backpack Bag Addmotor Bicycle Backpack Bag
What is the small adjustable knob on the side of the backpack?
asked on December 12, 2023
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The adjustable knob is a compression strap. By twisting it, you can squeeze the air out of the main compartment to reduce the backpack's bulk.



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ManageOctober 17, 2025
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