Cathy Anti-harassment Backpack, black. 600D polyester two tone on sides and back, black PU on front , Lining 210D polyester black with black stripes printed. Bag size 26*11.5*34.5cm. YKK zipper on main compartment. EVA foam padded on top and sides. foam padded on front and back, PP protection board inside front. Replaceable hardware part with 501230 / 140mAh Li-Polymer rechargeable battery in right shoulder strip, buzzer + SOS button in left shoulder strip. Inside with IPAD compartments and zippered pockets. XDDESIGN rubber label inside, quick access zipper pocket on outside backside. With printing label, paper hangtag. Each bag packed in polybag and individual box.