Constructed of 300D Polyester, water resistant material, 1680D Polyester/PVC cross twill 7P, 600D Polyester/PVC 7P, 210D Polyester, and RFID lining One security carabiner-style zipper head on main compartment and a pass-through secure tab for front lower zipper pocket Main compartment features water resistant zipper with dual zipperheads, a padded holder (designed to hold a 15'' laptop), an organizer, and a RFID lined pocket Luggage strap - padded for added backpack comfort and easily slips over luggage handle Features include two front zippered pockets, one side mesh pocket, one side slash pocket, bottom webbing attachments with buckles, padded adjustable shoulder straps with reflective markings, and top loop