New Molle System Adjustable Waterproof Backpack

New Molle System Adjustable Backpack This is an expandable backpack, which can be expanded by zipper on the side. The thickness of the side can be switched between 8 'and 13', and the maximum packet capacity can reach 64L. Can hold more things and the side buckles make it easy to secure it and reduce the size if it's full, and this backpack is water resistance, very suitable for outdoor activities.