Launched in 2009 from founder Alyssa Wasko's college dorm room, Donni is a collection of everyday essentials intended to be worn in multiple ways. She named the line after her late father, Donald, and it's now made in Los Angeles and has been spotted on celebrities like Gigi Hadid, Kendall Jenner, Emma Roberts, Emily Ratajkowski, and Lily Collins. Last spring, fashion girls couldn't get enough of Donni's scrunchies, and this winter, the brand's tri-fleece pullover has taken over Manhattan.