1. Multifunctional bag that allows for classified storage of items to prevent confusion and increase capacity more effectively. 2. Comfortable and breathable mesh shoulder straps are equipped with a large number of sponge pads to relieve shoulder pressure. Ergonomically thickened, widened, and reinforced S-shaped shoulder straps and high-elasticity breathable back and hip belt support provide optimal ventilation and reduce strain during travel. 3. Waterproof and Durable - The climbing bag is made of high-quality nylon, which is tear-resistant, scratch-resistant, and wear-resistant. You can also use our rain cover (located at the bottom of our hiking bag) to further prevent water and dust from entering the backpack, protecting your valuables from heavy rain and keeping everything dry. 4. Features of the Upgraded Hiking Backpack - When packing many items, the adjustable lid of the backpack can be better adjusted to the correct position. The bungee pocket on top can also hold a wet towel or a thin jacket.