Laptop backpack daypack suitable for unisex colour black style business capacity 275 litres maximum volume 30 weight 16 kg height 50 cm width 37 cm depth 25 cm max laptop size 173 inch size of laptop pocket 42 x 28 x 4 5 cm features organiser trolley attachment pen holder chest strap water bottle pocket padded back internal pockets padded laptop compartment inside zip compartment tablet compartment document sleeve inside pocket mobile phone p