This 50L hiking backpack uses lightweight 210D rip-resistant nylon fabric. The main stress points are reinforced to provide long-lasting durability for everyday use. This hiking backpack adopts ventilated 3D sponge back panel wicks away sweat, while adjustable chest/waist/shoulder straps stabilize heavy loads. The large capacity and multi-compartment features are convenient and practical.Durable SBS Zipper and reinforcement at significant stress points further increase longevity. Easily folded for storage and unfolded when needed. Breathable mesh shoulder straps with ample foam padding help relieve shoulder pressure. A must-have for sports, hiking, camping and traveling..syi