Knack Series 1 Medium Expandable Backpack, Indigo Blue color_OGIO_OG116 18 kg Note: Bags not It has our fully 18 kg Note: Bags not intended for use by children 12 and under 680D poly PU Spacious main compartment Easy access padded laptop tablet compartment Front fleece lined front pocket for valuables and phone Interior organization panel with zippered front and key ring Fleece lined front pocket for valuables and phone Exterior USB charging port Interior cord for charging Integrated padded luggage trolley pass through on back Zippered side pockets with fabric gussets for valuables and water bottlesErgonomic adjustable shoulder strapsPadded back panelReflective panels on front Dimensions: 19'h x 11'w (top) x 14'w (bottom) x 9'd Capacity: 1 Hidden trolley sleeve slips over wheeled luggage handles expandable packing compartment holds 2 to 3 changes of clothes