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 37 litres weight 22 kg height 55 cm width 40 cm depth 20 cm wheels 4 wheel properties double wheels 360 rotating series delsey caumartin material plastic fabric specification polycarbonat inner material polyester material properties waterproof lockable combination