blacksheep,,, i bought a ryanair cabin bag the measurements are 55x40x20. the weight allowed is 10 kg, the actual bag weighs about 3.5 kg. i have travelled about 10 times on ryanair with it and i never been asked to put it in the cage yet. ironically aer lingus had the same measuerments but they have increased the thickness from 20 to 24 cm .buttttt they have stopped a seperate laptop , they have put restrictions on the size of a handbag or sachel to 25x33x 20 , im not sure of the last figure but it effectively means no seperate laptops id say an i pad would be ok, no carry on overcoats etc , its all on their website. i was asked in dublin airport last week to put my ryanair cabin bag into a cage as i was about to board an AER LINGUS flight.