Laptop backpack daypack suitable for mens colour blue style sporty capacity 21 litres weight 091 kg height 48 cm width 33 cm depth 24 cm max laptop size 154 inch size of laptop pocket 35 x 25 x 3 cm features key holder reflective elements pen holder organiser chest strap hip strap padded back internal pockets padded laptop compartment mobile phone pocket document sleeve outside pockets front pocket side pocket additional fastenings safety l