MICHEL MARTIN, HOST: And finally, Nike unveiled a new sneaker design last week, but these are not named for some superstar or even up-and-coming athlete. No, these are called the Go FlyEase. And they are the company's first hands-free sneaker. That means no laces to tie, no Velcro to strap, no zippers necessary. It's the latest model of a Nike line made with accessibility in mind, so people living with disabilities or who just have trouble tying and untying shoes can also have a cool, supportive sneaker for everyday wear. And that line exists in part because of Matthew Walzer. He is living with cerebral palsy, and that affects some of his motor skills. Back in 2012, when he was just 16, Walzer wrote a letter to the company asking them to make shoes that he and others like him could wear. Walzer collaborated on the early models of FlyEase, and he is with us now to tell us more. Hello. MATTHEW WALZER: Hello, Michel. How are you? MARTIN: I'm good. Well, congratulations, sir. It's not