The materials and workmanship used are first class and are subject to quality control before shipment. Do not compare it with similar products sold - similar in appearance - but of poor quality in material and will tear and disassemble in a short time. It is completely faithful to the design and produced in high quality. 45 Liters 47 x 32 x 30 cm Large volume - multi-compartment - multi-functional military backpack - large volume mountaineer bag. Waterproof, high-strength bag fabric. Highly waterproof inner lining. Numerous mesh and zippered interior sections to meet all your needs. Functional organizer sections for pen compartments, phones, tablets, computers and chargers. 8 mm thick pad foam-supported sections. Front and side. - Numerous velcro and column designs at the back to meet all your needs. 4 cm and 2-5 cm sized buckle and lock systems at the front, side and back. Functional-auxiliary apparatus for carrying tents, radios, camping chairs, mullahs and many other materials. has been placed.