CloudTec Phase makes the Cloudsurfer 2 look a little different from older On shoes, but fans of the aesthetic won't be ...

But what’s the deal with these high-tech shoes? Are they really as fast as everyone claims or is it just clever marketing? Spoiler alert: The hype is real, but it depends on your running goals.

Syntilay CEO Ben Weiss, 25, and Reebok co-founder Joe Foster, 89, who have partnered on the high-tech venture, told USA Today that 70% of the custom-fit shoe’s design — which was crafted to ...