Jansport - Alt Pack Livewire BT (Black) - Handbags: Wired for iPod compatibility. Integrated Bluetooth technology. Fits 15.4" screen computer. Shockshield keeps your laptop and other equipment safe and secure. New Airlift shoulder straps. Integrated raincover. 6 separate compartments. Space-saving V-loft Pocket. Dedicated cord storage. Fabric: 630D Denier Riot Cordura Ballistic Nylon/330 Denier Air Tex Nylon. Weight: 2 lbs. 11 oz. (1.2 kg). Dimensions: 19" h x 13" w x 9" d. Volume: 1100 cu in (18.0 L).