RYANAIR MAXIMUM CABIN LUGGAGE SIZE: We specifically designed the TBPMAX backpack to measure 40x20x25cm; which is EXACTLY the maximum allowed size you can take for free in the cabin when flying with Ryanair. It is also accepted on virtually all major airlines world-wide including: Wizzair, EasyJet, British Airways, Emirates, Qatar, and Lufthansa to name just a few! Weight: 2.2kg, Capacity: 19L. This Aerolite backpack trolley bag is designed to meet the maximum cabin luggage size for Ryanair at 40x20x25cm, making it ideal for stress-free travel. It also fits the cabin luggage requirements for most other major airlines. The bag features 2 wheels for easy maneuverability and has a capacity of 19L.