micoach is all you need to get the results you want.
I purchased this for my 10 year old boy, who has recently become a soccer aficionado. He already owned the México Home Jersey, so we knew what to expect. He really loves his Adidas jerseys, as it is hard to make him take them off. They fit nicely, the colors are bright, they are light and easy to care for.
We purchased age 11/12 for our very slim 10 year old but it was much too short, though as he's skinny, it did fit his chest comfortably. However, Addidas were more than helpful in arranging a return and even honoured the discounted price when I bought the next size up.