Travelon Heritage Anti-Theft Laptop Backpack Pewter Gray RFID 13 x 17.5" in EUC • Anti-Theft security system; padded straps are secured at back panel • Roomy main compartment with padded sleeve holds up to a 15.6" laptop • 22 cubic liters • Organizer compartment with zippered pocket, slip pockets and pen loop • Rear pass through strap for sliding over wheeled luggage handles • Tethered key clip in main compartment.