Packable Water Resistant Handy Lightweight Nylon Folable Travel Backpack Dayback Hiking Bag Unisex Bag 15l Black Lightweight compact packable day pack, 212g(7.5 oz), very light is good for short day hikes. capacity: 15 liters(913 cubic inches) . Multi-compartment design with side mesh water bottle pockets keep many stuffs. Material:Water-resistant Nylon Fabric(D210),Breathable mesh shoulder straps, bottle holder on the both sides Unfold: 16.9x10.6x5.1 inches, Fold: 6.69x6.49x1.6 inches, assistant for business trip.