Puma AIRTWIST BLUE LOW S3 ESD HRO SRC 644620300 SAFETY TRAINERPUMA SAFETY AIRTWIST BLUE LOW S3 ESD HRO SRC Urban street style as a performance safety shoe. The new URBAN EFFECT models are all about legendary classics and Cult sneakers, but contain the latest technologies from sports and sports. Safety shoe area, such as the new sole construction with EFFECT. FOAM, ensures optimal cushioning and energy return (70% above standard) and that ultra light FAPlite penetration protection. URBAN EFFECT gives everyday