Nike hypervenom iii 3 phinish astro turf trainers junior the nike hypervenom iii 3 phinish astro turf trainers are ideal for youngster to wear when playing indoors and on astro turf pitches the trainers benefit from a textured outsole that offers exceptional grip and allows them to move around the pitch with ease asymmetrical lacing on the front of the boots allows for a large surface are at the front to strike the ball with trainers astro turf junior asymmetrical lacing