The improved CloudTec System with 15 high profile Clouds cushions the landing and offers outstanding impact protection. Equipped with the Speedboard, it unleashes the natural energy of your feet and promotes an efficient running . Win the battle beneath your feet and transform impact into an easy, natural run. The Cloudrunner was designed for runners with high intensity and long training distances. Build your endurance, reduce your recovery time and run on clouds Features: -The upper-enforcements provide additional support and a snug fit in every terrain. - CloudTec rubber compound formula offers the ultimate in low-abrasion durability. - Smart placed reflective applications improve safety in dim light.