The tariff class and boarding priority dictate the Ryanair hand Luggage Size. The dimensions of cabin luggage are usually restricted for customers travelling in economy class, and larger bags are subject to additional charges. Priority travellers are allowed to bring a larger cabin bag, though. Travellers should always check the official Ryanair website or get in touch with customer care for the most up-to-date information regarding the precise dimensions of their hand luggage, as they sometimes vary. When travelling with Ryanair, passengers can avoid unforeseen costs and ensure a seamless boarding experience by adhering to the hand luggage size limits.