4Monster Hiking Daypack,Water Resistant Lightweight Packable Backpack for Travel Camping OutdoorLightweight & CompactWeight only 4 (oz), which is about half of the weight of a iphone. Easy to carry, can be folded into the wallet size fit into a pocket. Water Resistant materialThis lightweight hiking daypack is made of water resistant material and zipper. Effectively prevent rainwater from wetting the phone or cash and other items in the backpack. DurableTear resistant 30D nylon will effectively prevent branches, stones from scratching the pack,