Men's SR-1 Tempo Runner CXT1 With a Nylon Shank for

With a Nylon Shank for torsional stiffness

Redefined - Building on the success of its predecessor

This is not a training shoe

The Techknit 3D knit upper construction is also a key feature of this shoe

this design maximizes ground force and delivers explosive power

Men's SR-1 Tempo Runner CXT1 With a Nylon Shank forSpeed. 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.