Experience versatile functionality with the Large Capacity Backpack for outdoor activities like travel, cycling, mountaineering, and hiking. With a 50L capacity, it boasts a durable nylon and polyester fiber fabric and features a top zipper pocket, side pockets, and a main pocket for ample storage. The anti-theft sliders, adjustable cassettes, and high-quality buckles ensure secure carrying while the back vent design promotes ventilation. Stay organized with the elastic mesh pockets on the side for easy access to small items like water cups and umbrellas. This backpack is your ideal companion for its lightweight, comfortable, non-slip, and waterproof design.