Laptop backpack daypack suitable for unisex colour black style sporty capacity 29 litres weight 113 kg height 47 cm width 34 cm depth 19 cm max laptop size 15 inch features hydration compatible reflective elements pen holder organiser chest strap hip strap water bottle pocket padded back internal pockets padded laptop compartment mobile phone pocket outside pockets front pocket side pocket mesh side pockets additional fastenings helmet holder