Heres a question someone might be able to hep me with! Have been looking at some Jerseys similar to happymerv and was wondering what the difference between an Adult M & a Youth XL? A guy on ebay has youth heaps cheaper, but he hasn't answered my question, I'm assuming they are quite similar, but he doesn't want me getting cheaper ones! I'm an adult M but think I could fit into a youth XL or even L. Can someone please help?