Not really—as far as we know, the world’s supply of blue sweaters remains uninterrupted despite the Duke of Cambridge’s penchant for this exact item of clothing. From his time as a university student at St. Andrews, to his day-to-day schedule as a working royal, Prince William’s blue sweater has seen him through it all. Click to view a slideshow of his blue sweater’s greatest hits through the years! (Disclaimer: we very much doubt that it’s the exact blue sweater every time. That would be one well-worn garment by now, and surely at some point, Queen Elizabeth II would have put down her foot.) But her certainly loves this sweater style! Check out:Kate Middleton’s Style EvolutionMeghan Markle Maternity StyleAll About Prince Harry and Meghan Markle’s Wedding