【Detachable Ergonomic Frame System】:Internal Frame Backpack,designed with Detachable Ergonomic Frame System, which can be disassembled and assembled at any time according to the use needs. Ergonomic back support offer better ventilation to dissipate heat and make carrying comfort at the great level.even if carried for long periods of time without burdening the lower back. Ideal backpack for men women., 【Large Capacity】:This backpack measures 22 x 13 x 8.66 inches, with 50L large capacity but only 2.75 Ibs weight.With a multi-compartment design that includes 1 top zipper pocket (with 2 compartments inside), 1 main pocket (equipped with a notebook compartment, can hold 15.6-inch laptops), 2 cup side pockets, 2 phone pockets, 1 shoe compartment pocket, and 1 rain cover bottom pocket. Suitable for hiking, backpacking, and mountain climbing, 【RAIN COVER INCLUDED】:The backpack come with extra waterproof rain cover pouch on the bottom pouch, prevent the water and dust into the backpack in the short term,the multifunctional design can meet the needs of daily use as well as hiking, traveling and outdoor adventures, 【High Quality】:This backpack is made of sturdy tear-resistant and scratch-resistant nylon material, with smooth zippers and exquisite high-density sewing technology. Stronger stitching technology is used in places where it is needed, such as shoulder straps, handles, bottom and other places. You don't have to worry about the backpack tearing when carrying heavy things, so you can travel without worries, 【Cost Effective Hiking Backpack】:Ubozeuiv backpack has obvious advantages at the cost performance, reliability and quality;, You can get a great quality backpack of the same quality as a hundreds dollar for less money.