Ryanair allows each passenger to bring one small personal bag on board that must be small enough to fit under the seat in front of you free of charge. If you exceed this then you will be charged a fee. Ryanair do allow more baggage at an extra charge through priority booking only. This allows you two bags, one standard bag and one carry on bag, your smaller bag must fit under the seat in front of you and the other must fit into the over head locker, you must be able to lift this yourself so please keep it a max of 10kg.
Booking through priority gives you the benefit of queuing via priority and carrying your luggage on board with you meaning you don't have to wait for the bag at the terminal at the destination. You can buy Priority tickets online up to 2 hours before you departure, or using the Ryanair app up to 40 mins before your flight departs.
All passengers are allowed a 20cmx20cm bag with liquids and pastes with the volume of 100ml per item with the whole capacity not exceeding 1 litre. Permitted and restricted items.
If you are due to switch flights, please be sure to check with the other airlines baggage policy.