While it features our patent-pending expandable travel compartment, that's where the similarity with all previous Knack Packs ends. From its leather-wrapped touch points to its entirely redesigned organization compartment, this new member of the Knack family stands on its own. Easy-access, padded side-zip computer pocket for 15" laptops. Spacious main compartment with organization pockets, fleece-lined tablet pocket and removable key leash. Hidden, zip-away side water bottle pocket. Side handle for easy carry. Black metal Knack logo hardware. Separate, patent-pending, expandable packing compartment holds 2 to 3 changes of clothes. Meets most popular carry-on requirements as well as fits under most seats. Hidden trolley sleeve slips over wheeled luggage handles. Custom-developed, durable, water-resistant body fabric. Molded, comfort-cool foam back panel. YKK water-resistant zipper with custom-designed pullers.