And understand that even a single wearing (or probably a lot of try-ons with your new sweater) means your natural-fiber clothes (wool, silk, cotton, cashmere, fur including blends) are no longer sterile when it comes to insects.
Brace yourself and make sure no children are looking over your shoulders, because these hoodlums belong to a particularly nasty group called the Christmas Sweater Club and they got in trouble for handing out miniature candy canes.