Laptop backpack daypack suitable for unisex colour turquoise style business capacity 23 litres maximum volume 30 weight 12 kg height 46 cm width 34 cm depth 23 cm max laptop size 156 inch features trolley attachment pen holder headphone access water bottle pocket padded back internal pockets document sleeve credit card compartment mobile phone pocket valuables pocket tablet compartment padded laptop compartment outside pockets front pocket sid