Polyester Imported THE FLIGHT CLASSIC MESSENGER: A monochromatic, lightweight messenger bag KEEP IT ORGANIZED: Internal organizer for pens, phones, and other small stuff; Internal slash pocket provides padded, firm place to store files; All sizes except XS have napoleon side-entry pocket for access without undoing the flap; X-Small size fits 9" tablet; Small fits 13" laptop; Medium fits 15" laptop CLEVER EXTRAS: Heavy duty plastic SR buckles; Low profile top grab handle for easy heave-ho; Reflective tabs for visibility; Vista loop for attaching blinky bike lights MATERIALS & FIT: Waterproof TPU liner; Coordinating Strap Pad included; All sizes except XS have removable crossbody strap for cross-body stabilization; Fully adjustable shoulder strap with a permanent, super comfortable airmesh strap pad LIFETIME WARRANTY: Timbuk2 stands behind the legendary quality and craftsmanship of all our products; We also embrace the wild, twisty ways of life; If there is a defect in the materials or workmanship we will repair the bag at our discretion for the lifetime of the product