Nike has unveiled two new super shoes: the Vaporfly 4 and the Streakfly 2. Eight years on from the release of the first iteration (confusingly named the Vaporfly 4%, after lab tests suggested it ...

“The Streakfly 2 is a renaissance for racing,” added Nike athlete Cooper Teare, an American middle- and long-distance runner. “I can run fast 200s or a smooth 5K pace in the new Streakfly.