Men's SR-1 Tempo Runner YGroup_sr-1-tempo-runner the Valkyrie Speedworks runner is

the Valkyrie Speedworks runner is equipped with an anatomical toe box and the LaunchPX midsole that features a full length nylon plate

the CXT-1 Trainer from TYR is designed to take on the most rigorous competitions and training regiments

- Surge NRG+ Foam enhanced with supercritical foam for ultimate response and durable support for any movement

TYR’s L-1 allows for natural foot movement and added power

this versatile shoe is perfect for those who view speed as a pathway to covering more miles and experiencing new unbeatable highs

Men's SR-1 Tempo Runner YGroup_sr-1-tempo-runner the Valkyrie Speedworks runner isSpeed. 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.