Flex grooves are strategically placed to complement the foot's natural bending points, best shoes for high intensity interval training.

Brand: NIKE

Color: Black/White Volt

Features:

• Phylite mid-sole for cushioning
• Flex grooves throughout the mid-sole allow unbelievable flexibility

Publisher: Nike

Details: Blending a sock-like fit and the foot-strengthening benefits of barefoot running, the Nike Free Flyknit promises to deliver a running experience like no other. The comfortable one-piece upper offers a smooth, seamless design and features Flyknit technology that wraps the foot for a secured fit, reducing foot slippage. The FREE Flyknit offers a truly revolutionary fit..

A torsion system in the midfoot provides stability during agility drills and running strides, 49ers nike training shoes.