As well as a backpack for books, DS's school has a compulsory style of holdall for sports kit. As he often does a lot of sport it can get very heavy sometimes (2 pairs of shoes at size 10, plus indoor/outdoor kit). I know some schools now have trolley bags, but I can't see it coming to ours any time soon. I was wondering if there was any kind of trolley you can buy to put a normal holdall on? (Preferably something that will be cool enough to catch on with his mates rather than making him look like a plonker).