We've picked out 15 unusual or outstanding World Cup shirts - all you need to do is tell us which nation played in each one.
Very straightforward, right? Although we've steered clear from, say, Holland home kits because what other nation is dazzling you in bright orange during a World Cup summer? (Oh, all right, Ivory Coast do too).
But each of these 15 shirts are memorable for different reasons. Some were hailed as fashion classics, others were famously worn by players who won Golden Boots or even lifted the World Cup itself.
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So just picture each kit being live on TV as the world enjoyed a massive summer of international football (though try not to cry while doing that, obviously - there's people watching you).
Let us know your score out of 15 after you're done - and tag a mate to set the challenge to them.
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Featured Image Credit:Topics: Football, Football Shirt, World Cup