WBEZ brings you fact-based news and information. Sign up for our newsletters to stay up to date on the stories that matter.Whether you call them sneakers, joggers, or something else (sand shoes?), there’s no denying the popularity of athletic footwear. With more than $30 billion in sales a year, it’s clear not everyone who buys a fresh pair is playing sports. | Want to support 1A? Give to your local public radio station at donate.npr.org/1A and subscribe to our podcast. Have questions? Email the show at email@example.com and find us on Twitter @1a.