This won't really be a suitcase for flying, more for car and train journeys. It needs to contain all of the stuff DD needs for each of her university breaks, e.g. summer, Christmas... So her toiletries, clothes for about a month, shoes, and other bits and pieces.
So basically I am looking for a large sturdy suitcase that can be transported upright with wheels, not too cumbersome for short DD to lift it on to the train, and to live off for a few weeks, alongside a backpack.
Would love some recommendations for something practical. Nothing fancy. Cheers!