Endorphin Speed 4 Width:Regular Delivers impact resistance with optimal

Delivers impact resistance with optimal cushioned running sock design

without restricting movement

The latest entry in the series

Hidden Contour socks keep feet cool and dry throughout every activity

View sizing chart to find your fit

Endorphin Speed 4 Width:Regular Delivers impact resistance with optimalWe're all seeking relationships that go the distance. The Endorphin Speed 4 running shoe is here to fill the role. Designed as a race day shoe, it's quickly proven itself much more, equally capable during long, moderate training sessions and sprints to the finish. Thanks to the "just right" combination of winged nylon plate, SPEEDROLL technology and PWWRUN PB foam, this cushioned running shoe provides the perfect balance of support, rebound and