Mens Endorphin Pro 4 - Lapis/Citron Singlets The Active Chassis creates a

The Active Chassis creates a strong base which helps torsional rigidity

Mental Athletic #3 features relevant contributors

or the concrete jungle

21% elastane (Italy)

Mens Endorphin Pro 4 - Lapis/Citron Singlets The Active Chassis creates aThe Mutant Collection injects a new colourway into Saucony's beloved running styles, giving one the power to perform at an elite level. Saucony's premiere performance model, the Endorphin Pro 4 is the fastest shoe in their suite of road running models. With an improved midsole featuring dual cushioning and updated outsole for even more. All that speed comes from the cushy, PEBA polymer PWRRUN PB midsole which is paired with a s curve carbon plate for