Haley Pavone was a junior in college when she decided to start her own shoe company, Pashion Footwear, with an innovative twist: Her shoes can go from a high heel into a flat in a matter of seconds. The company, which launched online in 2019 and has been featured on Shark Tank, has patent-pending status in 30 countries and is on track to hit $3.1 million in sales in 2021. Read her Forbes 30 under 30 profile here.