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 44 litres weight 31 kg height 55 cm width 35 cm depth 25 cm wheels 4 wheel properties double wheels 360 rotating series delsey grenelle material plastic fabric specification polycarbonat inner material polyester material properties waterproof lockable combination l