The Sierra can hold not only work or study gear but also, for example, gym equipmentat 32 liters, its already quite large for a daypack. The details are functional without going overboard, resulting in a comfortably light total weight for its capacity. That said, fabric durability hasnt been overly sacrificed for weight savings: the 300-denier outer fabric withstands everyday wear and tear very well. The front panel has two daisy chains, enabling hanging gear, or DIY'ing a nifty bungee cord lattice by buying bungee cord. The Sierra is also a great choice for airplane cabin use. - Jack Wolfskins Snuggle Up back panel is padded for comfort - Padded laptop compartment for a 15" device, padded pocket for up to a 10" tablet - Small inner pockets for organization - Two side pockets - Two front pockets - Padded carry handle - Compression straps -Softneck S-shapeshoulder straps - Chest strap and detachable hip belt