Men's Endorphin Speed 5 mpartypacesinglet 60g proprietary 50% recycled wool

60g proprietary 50% recycled wool insulation

and traction matter most

Each serving provides 90+ minutes of sustained energy with zero sugar

Advanced Upper Design

stay protected without sacrificing comfort in the Smartwool Women’s Active Fleece Wind Tight

Men's Endorphin Speed 5 mpartypacesinglet 60g proprietary 50% recycled woolPush your pace in the Saucony Endorphin Speed 5 Mens running shoe, engineered for both speedwork and everyday training. Designed with responsive PWRRUN PB foam and a winged nylon plate, it offers snappy energy return and smooth transitions. SPEEDROLL technology propels you forward with each stride, while a full length longitudinal groove boosts flexibility for a more natural gait. The updated engineered mesh upper is lightweight and breathable,