Laptop backpack daypack suitable for unisex colour black style casual capacity 20 litres height 43 cm width 32 cm depth 14 cm max laptop size 15 inch features key holder padded back internal pockets padded laptop compartment inside pocket outside pockets front pocket straps padded shoulder strap main compartment feature fits a4 size bag feature suitable as cabin luggage iata norm material synthetic fiber fabric specification nylon inner mat