The new 4SYS technology is the culmination of three years research and testing into the dynamics of movement. Result of the testing is a perfect shoe with ideal running characteristics.

Impact Zone, 4SYS midsole, Peak Force outsole. Lightweight PU/mesh upper, non-slip heel linings. Gussetted 'stay straight' air mesh tongue, internal torsion bar. Locking lace eyelets, Anti-Bac lining. Dynamic fit last.