1540v3 - Men's Carbon-Fiber Toe Meets or exceeds ASTM F1677-96

Meets or exceeds ASTM F1677-96 Mark II non-slip testing standards

And the cork frame of the outer sole guarantees an authentic design

phantom lining construction and a supportive leather upper

FIT: Due to extra cushion

and the non-slip sole keeps it stable

1540v3 - Men's Carbon-Fiber Toe Meets or exceeds ASTM F1677-96Our 1540v3 is kitted out with technology that helps deliver mile after mile stability and combat overpronation. It's made with two layers of performance foam that offers superior support and a soft rebound. Designed with an ENCAP and Rollbar midsole technology, this runner offers rear foot movement control for feet on runs from 5K and beyond. 10 mm drop: due to variances created during the development and manufacturing processes, all references to 10