For many sporting events, Kate Middleton opts for skinny jeans, a blazer, and wedges. But when she joined Prince William and Prince Harry to promote their Heads Together campaign [1] at Queen Elizabeth Olympic Park, the duchess took a sporty turn. Slipping into New Balance sneakers and movable denim, Kate pulled on her new red Perfect Moment puffer coat — an essential [2] most of us were at least planning on shopping [3] this year. Though the trend calls for a slightly oversize fit, Kate's jacket ran snug, giving her outfit (however casual [4]) the polished touch she prefers. Read on to get the look, then browse through similar cherry puffers in a whole range of shapes.