Laptop backpack daypack colour black capacity 154 litres weight 145 kg height 48 cm width 38 cm depth 15 cm max laptop size 154 inch size of laptop pocket 36 x 29 5 x 5 cm features organiser water bottle pocket padded back internal pockets mp3 player pocket laptop pocket document sleeve outside pockets front pocket side pocket bag feature suitable as cabin luggage iata norm material synthetic fiber inner material synthetic fibre material pr