Are made with quality synthetic materials

While the first version of the Streakfly was a solid track/road flat, version 2 looks to be much improved, bulking up significantly with a lot more ZoomX foam in the midsole, while adding a carbon fiber Flyplate for the ultimate in lightweight responsiveness.

Unisex sizing, so add subtract 1.5 sizes to convert from women's sizes (a women's 8.5 is equivalent to a Unisex 7)

4mm drop
5.1 oz

Adapt to different running styles and speeds