Trolley bag hand baggage type of baggage hard shell suitcase cabin trolley approximate size s suitable for adults colour grey bag feature on board luggage iata norm capacity 39 litres weight 25 kg height 54 cm width 39 cm depth 20 cm wheels 4 wheel properties double wheels 360 rotating series titan triport material plastic fabric specification makrolon polycarbonate inner material synthetic fiber material properties waterproof lockable