Features: Made of high intensity nylon fabric, water-resistant and scratch-resistant, long lasting durability. 36-55L large capacity storage space with multiple pockets design, convenient to carry travel items. Adjustable shoulder straps and waist straps, adjust the tightness freely according to your own need. Convenient hanger design for easy to store and fix your alpenstocks, fishing rods and other sticks. Addition rain cover design for better waterproof performance, no worry about splash water or rainy days. Back and shoulder straps breathable mesh fabric, keep you cool and dry all day, make you comfortable. Suitable for outdoor activities like cycling, camping, mountaineering and hiking, etc.