Men's RD-1X Runner Trainer The lightweight upper continues to

The lightweight upper continues to provide unrivaled airflow and response with added anti-stain-treated engineered mesh to keep you feeling fresh

this barefoot trainer ensures comfort and agility

Redefined - Building on the success of its predecessor

With a Nylon Shank for torsional stiffness

The Techknit RNR-1 Trainer features SurgeNRG+ enhanced with supercritical foam for ultimate all day comfort and durable support for any movement

Men's RD-1X Runner Trainer The lightweight upper continues toThe RD 1X is equipped with the latest in foam technology, Surge NRG+ enhanced with supercritical foam for ultimate comfort, response and durable support for any movement. The lightweight upper continues to provide unrivaled airflow and response with added anti stain treated engineered mesh to keep you feeling fresh. A 10 mm heel to toe drop provides control for amplified acceleration moving you toward your goals faster.