Laptop backpack daypack suitable for unisex colour black style business capacity 18 litres weight 11 kg height 45 cm width 30 cm depth 23 cm max laptop size 156 inch features trolley attachment pen holder padded back internal pockets mesh pocket glasses pocket padded laptop compartment tablet compartment document sleeve mobile phone pocket credit card compartment outside pockets front pocket straps ergonomic shoulder straps padded shoulder stra