It's free feels great and facilitates your physical and mental wellbeing - running is a life enhancer. So we set out to create the world's most comfortable running and exercise shoe. Biomechanically optimized for endurance runningSuperlight flexible knitted tongueAnatomically contoured footbed for superb arch support & pressure diffusionSole flares out at forefoot & heel to increase stabilityLight rubber outsole pods with extra grip & wear resistance for endurance running (grip suited to country paths/light trails)Outsole also has flex grooves to help feet move naturally & channels to reduce aquaplaningContrast-colour 'wishbone' propulsion plate visible on bottom of trainer