Airplane backpack S Underseater - Ryanair cabin bag (hand luggage: travel for 2 days): 40 x 25 x 20 cm, 24 L, 0.50 kg Multiple compartments for easy organization Inner and outer material made from recycled PET bottles using our Recyclex material technology Fits Ryanair's complimentary onboard dimensions (backpack S) Please check with your airline before departure for cabin size and weight restrictions We assume no responsibility if an airline applies different cabin size standards