Laptop backpack daypack colour black weight 18 kg height 48 cm width 40 cm depth 22 cm max laptop size 17 inch size of laptop pocket 40 x 30 x 5 cm features key holder pen holder organiser chest strap water bottle pocket padded back internal pockets mp3 player pocket laptop pocket mobile phone pocket outside pockets front pocket side pocket straps ergonomic shoulder straps main compartment features two main compartments fits a4 folder bag feature