If you buy from a link, we may earn a commission. Learn more The Alphafly has the most impressive CV in the history of running. Nike’s top-of-the-line racer is the only shoe to go under two ...

Nike What’s more, the Streakfly 2 could also have something absent on the Alphafly and Vaporfly designs: a negative drop, meaning the heel sits lower than the forefoot, as is common on spikes like the ...