•[Large Capacity Multi-functional Design]This 35L waterproof outdoor backpack is perfect for hiking, sports, and travel, offering ample space for all your essentials. •[Premium Durable Construction]Crafted from high-quality water-resistant and tear-resistant nylon fabric with reinforced stitching at stress points for long-lasting use. •[Foldable and Lightweight]The backpack is lightweight and foldable, smaller than a book after folding, for convenient storage and transport. •[Thoughtful Features]Equipped with breathable mesh shoulder straps, a chest clip with built-in survival whistle, and side elastic bands for trekking poles, ensuring comfort and practicality. •[Versatile Storage Options]Features a spacious main compartment, internal zippered pocket for valuables, and two large mesh side pockets for water bottles or umbrellas. •[Travel-Friendly]Ideal for avoiding overweight luggage fees by unfolding it from your checked baggage and using it as a carry-on for excess items. Specifications: •Capacity: 35L •Material: Nylon •Weight: 0.4KG (0.88 lbs) •Folded Size: 7x6x2 inches •Closure: Two-way metal zippers •Bottom: Double-layered for added strength •Suitable for: Outdoor travel, camping, hiking, day trips, and shopping Package included: •1 x Backpack •Not included other items