The material of 50L hiking backpack is Waterproof Nylon, high quality SBS pull string zippers, good ventilation, no deformation, Super versatile and multi-functional. Large Bearing Capacity: (Maximum)50L. Size: 14.2 x 9.4 x 23.6 inches. Size: 14.2 x 9.4 x 23.6 inches. The travel backpack is so large and roomy. One Large Front Zipper Pocket for quick access and one large deep main pocket as well as one SPECIAL ZIPPER POCKET for shoes or dirty clothes. There also comes with 1 bottom rain cover pocket INCLUDE RAIN COVER. 2 Hipbelt Pockets could accommodate your travel essentials and 2 Side Pockets for bottles or umbrella. There is a compartment in the main pocket designed for putting Hydration Bladder. Hydration Bladder is NOT INCLUDED. Breathable Mesh Back Panel make the heat quickly spread out, breathable perspiration and resistance to sweat make your back feel pretty comfortable when you carry the backpack for a long time. The design of Thick Shoulder Straps relieve weight on the shoulder. The hiking backpack includes rain cover that can protect your stuff from the rain. !!!!Does not include compass or USB Charge Port!!!