Product Description: Introducing our Large Capacity Backpack, perfect for all your outdoor adventures. This 50L bag is made of a durable nylon and polyester fiber blend, and features anti-theft sliders, adjustable cassettes, and high-quality buckles. The back vent design allows for ventilation, keeping you comfortable on your travels. Additionally, there are elastic mesh pockets on the side for storing small items like water cups and umbrellas. With its light, non-slip, and waterproof design, this backpack is ideal for activities such as travel, cycling, mountaineering, and hiking. Invest in this versatile and reliable backpack for all your outdoor needs.