Elevation Daypack is an all-in-one backpack that can be used on the trail, in the airport, or at school. It is 29L in capacity and is both 2L and 3L hydration compatible. There is a bungee system to secure loose items and dual main compartments. There is a front, soft-lined zipper pocket as well as a front organizer, and two roomy side pockets. The pack is comfortable with an air mesh padded back and shoulder straps, and adjustable/removeable sternum straps. A 20 oz. water bottle is included.