Hiking backpack suitable for mens colour multicoloured styles army sporty capacity 30 litres weight 11 kg height 45 cm width 25 cm depth 20 cm features hydration compatible organiser chest strap hip strap padded back outside pockets front pocket zip pocket additional fastenings gear attachment points straps ergonomic shoulder straps compression straps main compartment feature two main compartments bag feature suitable as cabin luggage iata norm