Men's SR-1 Tempo Runner YGroup_valkyrie-speedworks-runner with a 29% increase in

with a 29% increase in prolonged performance

The pinnacle of performance

reducing fatigue and empowering more reps

Adjustable double leather straps lock the midfoot down with precision

Featuring a Carbon Fiber POWERPLATE

Men's SR-1 Tempo Runner YGroup_valkyrie-speedworks-runner with a 29% increase inSpeed. Traction. Lightweight comfort. The SR 1 Tempo Runner is equipped with the latest in foam technology, Surge NRG+ enhanced with supercritical foam for ultimate comfort, response and durable support for any movement. This runner features a lightweight monomesh upper for unmatched breathability that's perfect for interval training, jogging, or walking. It's designed to keep your feet cool and comfortable throughout your exercise routine.