For a bit of context, there was a big debate in my dnd group about portrayal of clothes and that got me researching clothing from different people in history. Being Portuguese I decided to research the pre Roman population of Iberia but everything I found was a bit vague.
Yeah, everything you're going to find will be vague, because there simply isn't the kind of documentation required to know what people were wearing. Hopefully this doesn't discourage anyone who has information specifically about this region, but you may be interested in my previous answers: