Yes, Ryanair allows "bag pooling," but only under very specific conditions. You can only combine or share your checked baggage allowance with other passengers who are part of the same flight reservation and check in together. For example, if two people on the same booking each purchase a 20kg checked bag (totaling 40kg), one could check in a bag weighing 15kg and the other a bag weighing 25kg. However, no single bag is ever permitted to exceed 32kg due to health and safety regulations for airport ground staff. It is important to note that this does not apply to cabin bags; you cannot "pool" your 10kg overhead locker allowance to bring one 20kg carry-on. If you are traveling on separate bookings, you cannot share weight allowances at all. Furthermore, if you exceed the total combined weight of the bags purchased on your booking, you will be charged the standard excess baggage fee per kilogram, which can be quite expensive at the airport counter. Always ensure your bags are weighed before arriving at the terminal to avoid these steep "last-minute" surcharges.