Carry all your essentials when you are out camping in the Coleman 38-Liter Marsupial Daypack Backpack. This backpack offers the convenience of two packs in one with the included mini daypack. The mini daypack is hydration ready and can hold up to 10 liters of fluid. The bite valve is antimicrobial treated and is safe to use. This antimicrobial backpack offers great storage solution as it has internal organization pockets for storing important items. You can carry your laptop in the integrated padded laptop sleeve that fits standard 15" laptops. The side compression straps are comfortable and do not give you aching shoulders. This utilitarian hydration backpack has a fleece lined MP3 pocket with a headphone port that keeps your gadgets in place. You can also carry extra water bottles in the durable mesh water bottle pockets. Featuring an Air Egress raised back, this camping backpack offers free airflow, making it a must-have for all adventure seekers.