Unisex Nike Maxfly 2 jacket HRM-Fit captures running dynamics —

HRM-Fit captures running dynamics — such as vertical oscillation

-Reflective mirrored lenses- For regular sized heads- Best for preserving the future of our planet- No slip- No bounce- All polarized

Superfeet Casual Men's Easyfit® insoles give your shoes the support they're missing

Fiberglass-nylon Speedboard® redefines forward motion

Pocket Capacity: 22 cu in/0

Unisex Nike Maxfly 2 jacket HRM-Fit captures running dynamics —Nike Maxfly 2 Track & Field Sprinting Spikes Fit for the world's fastest, the Maxfly 2 is back in the starting blocks. Designed for the 100 meters to 400 meters (hurdle events too), it combines an ultra aggressive feel with the responsiveness of an Air Zoom unit to propel the speediest sprinters on the planet. Flyweave Construction Nike Flyweave construction on the upper provides a secure and conforming fit for various foot shapes. Carbon Fiber