Is it a bird? No. Is it a plane? No. Is it a shark wearing a Santa hat? Yes. Wait, what? This year, we're letting go of traditional Christmas animals and giving the humble shark the limelight. He's the king of the ocean but Lord knows he loves a present just as much as us. They're so sea-inspired you could be forgiven for wearing them on the beach maybe not in winter though. Perfect your Christmas costume with these snappy undies.