A 10 on a Barcelona shirt is read as a statement about an era, because of who wore it and for how long. That is not a reason to avoid it — it is a reason to know that you are making a statement.

On the Argentina shirt the same number carries a different and older weight, tied to the player who came before. If you want the version people will read as current, this is the one.

People who follow this player closely will have a specific period in mind, and they will notice if you bought the wrong one. Ask before you order if it is at all possible to ask.

If you cannot ask, the national shirt is the safe answer: it is not tied to a club season, and it is the version that reads correctly regardless of which era they meant.

On a striped shirt, check that the name set sits square rather than following the stripe. A print that is aligned to the bars rather than to the shirt is the thing that looks wrong later.

Spanish cuts sit between English and Italian — your usual size is normally right, up one if layering. Wash inside out and cold, never tumble dry, and never iron on the print.