Streakfly 2 Hurdles the FS4™+ creates a technical

the FS4™+ creates a technical performance sock that strengthens the foot and leg structure and prevents overuse injuries

3-oz 100% recycled polyester tricot mesh

4 Degree elite fit system for an unmatched performance fit

it was better for everyone who works hard and sweats

Streakfly 2 Hurdles the FS4™+ creates a technicalThe Streakfly 2 can help you out kick the opposition on race day. This speedster now comes with a carbon fiber Flyplate, complementing the ultra responsive ZoomX foam midsole and minimal upper you loved on the original. From the 10K to the mile, it can help you take your distances to the next level. Full Speed We integrated a full length carbon fiber Flyplate that delivers a propulsive feel. It helps you smoothly transition through every stride and