zipper sliders can be locked with a padlock (not included) special YKK zippers most durable in their class side compression straps Top and side handle for comfortable handling and hand-carrying waterproof material Integrated Tag Okoban Global Luggage TrackerModel: Classic Colour: Dark blue Fastening: zip Storage: main pocket, inner pocket, outer pocket, side pocket, laptop pocket Laptop pocket: 15.6" diagonal Specifications: padded straps, waist straps Material: Polyester Volume: 28 l Dimensions: 39 x 29.5 x 20 cm Washing and maintenance: wipe with a damp cloth