Call it the ultimate test run: When Eliud Kipchoge broke the two-hour marathon barrier in Vienna this past October, he was wearing a prototype of the Nike Air Zoom Alphafly NEXT%.

"For runners, records like the four-minute mile and two-hour marathon are barometers of progress. These are barriers that have tested human potential. When someone like Eliud breaks them, our collective belief about what's possible changes," says Tony Bignell, VP, Footwear Innovation. "Barriers are inspiring to innovators. Like athletes, when a barrier is in front of us, we are challenged to think differently and push game-changing progress in footwear design.”

The NEXT% platform is the ultimate expression of Nike's ambition to engineer footwear with measurable performance benefit. NEXT% is all about creating more efficient intersections between the body and technology to enable athletes to shatter personal boundaries — and sometimes, as our athletes have shown, break records. It is the ultimate meeting of sports science and purposeful design.