MOUNTAINTOP 55+10L Hiking Backpack (Black) polyester -HIGH-CAPACITY- 55L (3,356 cube inches); High quality professional backpack for camping, hiking and backpacking, designed to be comfortable and functionally versatile. Main compartment, sleeping bag compartment with divider, bladder compartment with hydration access, hip-belt pockets, top lid pockets and side pockets to keep your stuff separate and organized. -WATER-RESISTANT- Water-resistant polyester as the fabric can quickly slide water aside before water has a chance to penetrate it. Comes with a WATERPROOF rain cover that can cover and protect the whole pack from rain. -TOOL ATTACHMENT POINTS- Daisy chains, D-shape hooks, compression straps, bottom loops, key rings and bottom straps for hanging tools, tents, sleeping bags, and other accessory. -CR POWER FRAME SYSTEM- Serves to support the pack and distribute the weight of its contents across the body more appropriately, by transferring much of the weight to the hips and legs. 8 different adjustable sizes to fit your height. Padded and breathable mesh back panel and shoulder straps offer cushioned comfort, while also promoting air circulation along your back and shoulders. -LIGHTWEIGHT & COMFPRTABLE- Five colors available: Blue, Green, Maroon, Purplish Red, Sky Blue. Product Dimensions:29.9 x 10.2 x 14.1 inches