SUNVP 50L Lightweight Hiking Backpack Outdoor Sport Nylon Water-Resistant Internal Frame Trekking Bag with Rain Cover for Climbing Camping Travel Mountaineering Size: 31*22*54cm/12*8.6*21.2, Capacity: 45+5L, Material: 600D Polyester Nylon Adjustable straps- Multiple gear straps, cord loops and attachment slots carrying tent, hammock, sleeping bag, trekking poles or a variety of other alpine gear for any occasion. Pocket-Pocket rich design provide enough room no matter if it's a day trip or a week-long journey. Two convenient separators in the main compartment to help organize everything for your trip. Water-resistant- High quality water resistant material and included extra rain cover protect your valuables from heavy rain and keep everything dry. Great quality and design, Includes large sleeping bag compartment, multi-directional compression straps, and multiple compartments and pockets for strategic packing. Durable Hiking Backpack: Made with high quality tear Polyester+ nylon fabric, anti-Scratch,with strong hanging system, provides extra strength and long-lasting performance. Water-Resistant Trekking Bag: Waterproof nylon material, can quickly slide water aside before water has a chance to penetrate it. Also a waterproof rain cover stored in the bottom pocket, protect the whole pack from rain. Adjustable Backpacking: The length of the shoulder straps is adjustable(fit any size waist from about 28 inches), is suitable for female and male at any age.The chest strap with a whistle buckle help you lock your backpack in place securely.