Using this backpack is easy. First, decide on the size that suits your trip. The small one is good for short outings, while the larger sizes are for longer ones. If you need more space, attach additional MOLLE, ALICE or similar pouches to the attachment points. When packing, put heavier items close to your back for better balance. You can use the main compartments for bulkier items and the exterior pockets for things you need to access quickly. Don't forget to connect your hydration bladder (sold separately) if you want to stay hydrated on the go. Adjust the shoulder straps, waist belt and compression straps to fit you comfortably. As for maintenance, after each use, shake out any dirt or debris. Spot - clean it with a mild detergent and water if it gets dirty. Let it dry completely before storing it in a cool, dry place. Avoid overloading the backpack as it may damage the straps or compartments.