Nike tiempo genio junior astro turf trainers the nike tiempo genio astro turf trainers offer excellent ball control with a durable rubber outsole and strategically placed studs for added traction these astro turf trainers are also designed with an eva sockliner for added comfort with arch support complete with the nike swoosh logo for a classic look kids football boots lace fastening non marking sole waffle grip strategically placed studs eva sockliner lightweight cush